{"id":37652,"date":"2025-06-15T14:00:32","date_gmt":"2025-06-15T14:00:32","guid":{"rendered":"https:\/\/staging.pageloot.com\/?p=37652"},"modified":"2026-06-10T21:27:13","modified_gmt":"2026-06-10T21:27:13","slug":"qr-code-phishing-business-risks-and-fixes","status":"publish","type":"post","link":"https:\/\/pageloot.com\/cs\/blog\/qr-code-phishing-business-risks-and-fixes\/","title":{"rendered":"Phishing QR k\u00f3dem: Jak ochr\u00e1nit sv\u00e9 podnik\u00e1n\u00ed"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Pou\u017e\u00edv\u00e1 va\u0161e firma QR k\u00f3dy, ani\u017e by v\u011bd\u011bla, kter\u00e9 z nich byly zmanipulov\u00e1ny? Phishing pomoc\u00ed QR k\u00f3d\u016f \u2013 b\u011b\u017en\u011b naz\u00fdvan\u00fd \u201cquishing\u201d \u2013 prom\u011b\u0148uje ka\u017edodenn\u00ed pohodl\u00ed v past na kr\u00e1de\u017e p\u0159ihla\u0161ovac\u00edch \u00fadaj\u016f a tradi\u010dn\u00ed bezpe\u010dnostn\u00ed filtry jej \u010dasto zcela p\u0159ehl\u00e9dnou. Tato p\u0159\u00edru\u010dka popisuje, jak tyto \u00fatoky funguj\u00ed, co stoj\u00ed firmy a jak\u00e1 konkr\u00e9tn\u00ed opat\u0159en\u00ed m\u016f\u017eete zav\u00e9st, abyste je zastavili.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-qr-code-phishing-works\">Jak funguje phishing pomoc\u00ed QR k\u00f3d\u016f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Phishing pomoc\u00ed QR k\u00f3d\u016f zneu\u017e\u00edv\u00e1 z\u00e1sadn\u00ed slabinu: QR k\u00f3dy nejsou \u010diteln\u00e9 pro \u010dlov\u011bka. U tradi\u010dn\u00ed URL adresy dok\u00e1\u017ee tr\u00e9novan\u00e9 oko \u010dasto odhalit podvr\u017eenou dom\u00e9nu nebo podez\u0159el\u00fd \u0159et\u011bzec. QR k\u00f3d to v\u0161e skr\u00fdv\u00e1. Jak vysv\u011btluje Alex Mosher, glob\u00e1ln\u00ed viceprezident spole\u010dnosti MobileIron:<\/p>\n\n\n\n<blockquote class=\"is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u201cQR k\u00f3dy ze sv\u00e9 podstaty skr\u00fdvaj\u00ed sv\u016fj c\u00edl. Proto je schopnost zm\u011bnit QR k\u00f3d tak, aby ukazoval na alternativn\u00ed zdroj, ani\u017e by to bylo odhaleno, jednoduch\u00e1 a vysoce \u00fa\u010dinn\u00e1.\u201d<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u00dato\u010dn\u00edci vkl\u00e1daj\u00ed \u0161kodliv\u00e9 URL adresy do QR k\u00f3d\u016f, kter\u00e9 p\u0159esm\u011brov\u00e1vaj\u00ed ob\u011bti na fale\u0161n\u00e9 p\u0159ihla\u0161ovac\u00ed str\u00e1nky ur\u010den\u00e9 ke sb\u011bru p\u0159ihla\u0161ovac\u00edch \u00fadaj\u016f, nebo na str\u00e1nky, kter\u00e9 spou\u0161t\u011bj\u00ed stahov\u00e1n\u00ed malwaru. Probl\u00e9m zhor\u0161uje skute\u010dnost, \u017ee mnoho e-mailov\u00fdch bezpe\u010dnostn\u00edch syst\u00e9m\u016f nedok\u00e1\u017ee dek\u00f3dovat obr\u00e1zky QR k\u00f3d\u016f \u2013 vid\u00ed obr\u00e1zek, nikoli odkaz \u2013 tak\u017ee se \u0161kodliv\u00fd obsah proklouzne p\u0159es filtry, kter\u00e9 by zachytily oby\u010dejnou phishingovou URL adresu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V roce 2023 tvo\u0159il phishing pomoc\u00ed QR k\u00f3d\u016f 22 % v\u0161ech phishingov\u00fdch \u00fatok\u016f. Jedna rozs\u00e1hl\u00e1 quishingov\u00e1 kampa\u0148 vzrostla b\u011bhem n\u011bkolika m\u011bs\u00edc\u016f o 2 400 % a anal\u00fdza operace zam\u011b\u0159en\u00e9 na korporace zjistila, \u017ee zhruba 29 % \u0161kodliv\u00fdch e-mail\u016f obsahovalo QR k\u00f3dy.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-where-attackers-plant-malicious-qr-codes\">Kam \u00fato\u010dn\u00edci umis\u0165uj\u00ed \u0161kodliv\u00e9 QR k\u00f3dy<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u00datoky prost\u0159ednictv\u00edm e-mail\u016f a dokument\u016f<\/strong> jsou nejb\u011b\u017en\u011bj\u0161\u00ed metodou doru\u010den\u00ed. \u00dato\u010dn\u00edci vkl\u00e1daj\u00ed QR k\u00f3dy do p\u0159\u00edloh PDF nebo Word, aby obe\u0161li e-mailov\u00e9 bezpe\u010dnostn\u00ed filtry. V roce 2023 82 % quishingov\u00fdch \u00fatok\u016f napodobovalo d\u016fv\u011bryhodn\u00e9 zna\u010dky \u2013 Microsoft byl c\u00edlem v 51 % pozorovan\u00fdch p\u0159\u00edpad\u016f, n\u00e1sledoval DocuSign s 31 % a Adobe s 15 %. Mezi polovinou roku 2024 a koncem roku 2024 v\u00fdzkumn\u00edci odhalili p\u0159es 500 000 phishingov\u00fdch e-mail\u016f obsahuj\u00edc\u00edch QR k\u00f3dy vlo\u017een\u00e9 do PDF.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Fyzick\u00e1 manipulace<\/strong> je stejn\u011b nebezpe\u010dn\u00e1. \u00dato\u010dn\u00edci umis\u0165uj\u00ed podvodn\u00e9 n\u00e1lepky s QR k\u00f3dy p\u0159es legitimn\u00ed k\u00f3dy na frekventovan\u00fdch m\u00edstech \u2013 v restaurac\u00edch, na parkovac\u00edch automatech, leti\u0161t\u00edch a v maloobchodn\u00edch prostor\u00e1ch. V San Franciscu zlo\u010dinci um\u00edstili pad\u011blan\u00e9 QR k\u00f3dy na parkovac\u00ed l\u00edstky, kter\u00e9 u\u017eivatele p\u0159esm\u011brovaly na fale\u0161nou tranzitn\u00ed str\u00e1nku ur\u010denou ke kr\u00e1de\u017ei \u00fadaj\u016f o kreditn\u00edch kart\u00e1ch. Spr\u00e1va soci\u00e1ln\u00edho zabezpe\u010den\u00ed konkr\u00e9tn\u011b varuje, \u017ee legitimn\u00ed QR k\u00f3dy na ofici\u00e1ln\u00edm zna\u010den\u00ed obvykle nejsou n\u00e1lepky; k\u00f3d aplikovan\u00fd jako n\u00e1lepka by m\u011bl b\u00fdt pova\u017eov\u00e1n za podez\u0159el\u00fd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>N\u00e1vnady soci\u00e1ln\u00edho in\u017een\u00fdrstv\u00ed<\/strong> dotv\u00e1\u0159ej\u00ed obr\u00e1zek. Ob\u011bti jsou vyzv\u00e1ny k naskenov\u00e1n\u00ed QR k\u00f3du, aby z\u00edskaly slevu, p\u0159ipojily se k bezplatn\u00e9 Wi-Fi nebo vyplnily pr\u016fzkum. V jednom zdokumentovan\u00e9m p\u0159\u00edpad\u011b v Singapuru \u017eena naskenovala k\u00f3d v obchod\u011b s bubble tea a o\u010dek\u00e1vala v\u011brnostn\u00ed odm\u011bnu. M\u00edsto toho se do jej\u00edho telefonu st\u00e1hla \u0161kodliv\u00e1 aplikace a \u00fato\u010dn\u00edci j\u00ed z bankovn\u00edho \u00fa\u010dtu od\u010derpali 2 000 $.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-these-attacks-cost-businesses\">Co tyto \u00fatoky stoj\u00ed firmy<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-credential-and-data-theft\">Kr\u00e1de\u017e p\u0159ihla\u0161ovac\u00edch \u00fadaj\u016f a dat<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e9m\u011b\u0159 90 % quishingov\u00fdch \u00fatok\u016f je navr\u017eeno speci\u00e1ln\u011b k odcizen\u00ed p\u0159ihla\u0161ovac\u00edch \u00fadaj\u016f a citliv\u00fdch dat. \u00dato\u010dn\u00edci p\u0159esm\u011brov\u00e1vaj\u00ed ob\u011bti na p\u0159esv\u011bd\u010div\u00e9 repliky port\u00e1l\u016f Microsoft 365, SharePoint nebo bankovn\u00edch port\u00e1l\u016f. Vedouc\u00ed pracovn\u00edci jsou ne\u00fam\u011brn\u011b \u010dasto c\u00edlem, proto\u017ee jejich p\u0159ihla\u0161ovac\u00ed \u00fadaje odemykaj\u00ed kritick\u00e9 syst\u00e9my a privilegovan\u00e1 data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Osobn\u00ed za\u0159\u00edzen\u00ed to zhor\u0161uj\u00ed. Kdy\u017e zam\u011bstnanci skenuj\u00ed QR k\u00f3dy na telefonech, kter\u00e9 nejsou za\u0159azeny do podnikov\u00e9ho \u0159\u00edzen\u00ed, IT t\u00fdmy nemaj\u00ed p\u0159ehled o tom, co se stalo nebo k \u010demu bylo p\u0159istoupeno.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-financial-losses\">Finan\u010dn\u00ed ztr\u00e1ty<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pr\u016fm\u011brn\u00e9 n\u00e1klady na naru\u0161en\u00ed dat dos\u00e1hly v roce 2023 $4,45 milionu, p\u0159i\u010dem\u017e podvody s kompromitac\u00ed firemn\u00edch e-mail\u016f (Business Email Compromise) dosahovaly v pr\u016fm\u011bru $4,89 milionu \u2013 a to je\u0161t\u011b p\u0159ed zapo\u010dten\u00edm regula\u010dn\u00edch pokut a pr\u00e1vn\u00edch n\u00e1klad\u016f. P\u0159\u00edm\u00e9 ztr\u00e1ty z phishingu vzrostly meziro\u010dn\u011b o 76%. Jednotliv\u00e9 incidenty ilustruj\u00ed rozsah: podvod na britsk\u00e9 \u017eelezni\u010dn\u00ed stanici zanechal jednu ob\u011b\u0165 s dluhem 13 000 liber; rodina z Calgary p\u0159i\u0161la o $10 000 kv\u016fli podvodu s QR k\u00f3dem na Facebook Marketplace.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mal\u00e9 podniky absorbuj\u00ed nep\u0159im\u011b\u0159en\u00fd pod\u00edl \u0161kod. Ve Spojen\u00e9m kr\u00e1lovstv\u00ed \u010del\u00ed mal\u00e9 podniky odhadem 65 000 kybernetick\u00fdm \u00fatok\u016fm denn\u011b, p\u0159i\u010dem\u017e pr\u016fm\u011brn\u00e9 n\u00e1klady na vy\u0159e\u0161en\u00ed \u00fasp\u011b\u0161n\u00e9ho \u00fatoku se pohybuj\u00ed kolem $33 700.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-operational-disruption-and-reputational-damage\">Provozn\u00ed naru\u0161en\u00ed a po\u0161kozen\u00ed pov\u011bsti<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ukraden\u00e9 p\u0159ihla\u0161ovac\u00ed \u00fadaje \u010dasto slou\u017e\u00ed jako vstupn\u00ed bod pro nasazen\u00ed ransomwaru. V roce 2023 organizace utratily v pr\u016fm\u011bru $1,82 milionu za zotaven\u00ed z incident\u016f s ransomwarem. Stavebn\u00ed a in\u017een\u00fdrsk\u00e9 firmy \u010del\u00ed riziku \u00fatoku pomoc\u00ed QR k\u00f3du 19,2kr\u00e1t vy\u0161\u0161\u00edmu ne\u017e pr\u016fm\u011br; firmy poskytuj\u00edc\u00ed profesion\u00e1ln\u00ed slu\u017eby \u010del\u00ed riziku 18,5kr\u00e1t vy\u0161\u0161\u00edmu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Krom\u011b provozn\u00edch prostoj\u016f \u010del\u00ed podniky odlivu z\u00e1kazn\u00edk\u016f, vy\u0161\u0161\u00edm pojistn\u00fdm za kybernetickou bezpe\u010dnost a regula\u010dn\u00ed kontrole, kdy\u017e jsou vystavena z\u00e1kaznick\u00e1 data. Obnoven\u00ed d\u016fv\u011bry po naru\u0161en\u00ed trv\u00e1 mnohem d\u00e9le ne\u017e vy\u0159e\u0161en\u00ed samotn\u00e9ho technick\u00e9ho incidentu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-prevent-qr-code-phishing-a-layered-approach\">Jak zabr\u00e1nit phishingu pomoc\u00ed QR k\u00f3d\u016f: Vrstven\u00fd p\u0159\u00edstup<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u017d\u00e1dn\u00e1 jedin\u00e1 kontrola neodstran\u00ed quishing. Konzistentn\u00ed doporu\u010den\u00ed od bezpe\u010dnostn\u00edch v\u00fdzkumn\u00edk\u016f, feder\u00e1ln\u00edch agentur a podnikov\u00fdch bezpe\u010dnostn\u00edch t\u00fdm\u016f je vrstven\u00e1 obrana kombinuj\u00edc\u00ed filtrov\u00e1n\u00ed e-mail\u016f, kontroly identity, ochranu koncov\u00fdch bod\u016f, \u0161kolen\u00ed zam\u011bstnanc\u016f a pracovn\u00ed postupy pro hl\u00e1\u0161en\u00ed.<\/p>\n\n\n\n<figure><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/05\/layered-quishing-defense-c353d0-e3b6b6a918fe.webp\" alt=\"Vrstven\u00e1 obrana proti quishingu\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-email-security-controls\">Kontroly zabezpe\u010den\u00ed e-mail\u016f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nakonfigurujte syst\u00e9my zabezpe\u010den\u00ed e-mail\u016f s funkcemi, kter\u00e9 p\u0159esahuj\u00ed standardn\u00ed skenov\u00e1n\u00ed odkaz\u016f. Mezi \u00fa\u010dinn\u00e9 kontroly pat\u0159\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Filtrov\u00e1n\u00ed s podporou OCR<\/strong> kter\u00e9 dek\u00f3duje obr\u00e1zky QR k\u00f3d\u016f v e-mailech a analyzuje vlo\u017eenou URL adresu proti informac\u00edm o hrozb\u00e1ch<\/li>\n\n\n\n<li><strong>Anti-phishingov\u00e9 z\u00e1sady<\/strong> nastaven\u00e9 tak, aby ozna\u010dovaly datov\u00e9 \u010d\u00e1sti zalo\u017een\u00e9 na obr\u00e1zc\u00edch, zejm\u00e9na QR k\u00f3dy vlo\u017een\u00e9 do p\u0159\u00edloh PDF nebo dokument\u016f Office<\/li>\n\n\n\n<li>P\u0159\u00edsn\u00e1 pravidla spamov\u00e9 br\u00e1ny, kter\u00e1 ve v\u00fdchoz\u00edm nastaven\u00ed pova\u017euj\u00ed nevy\u017e\u00e1dan\u00e9 QR k\u00f3dy v e-mailech za vysoce rizikov\u00e9<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Konkr\u00e9tn\u011b pro prost\u0159ed\u00ed Microsoft 365, Microsoft Defender pro Office 365 zahrnuje dek\u00f3dov\u00e1n\u00ed obr\u00e1zk\u016f QR k\u00f3d\u016f pro zobrazen\u00ed vlo\u017een\u00fdch URL pro kontrolu reputace a vyhodnocen\u00ed bezpe\u010dn\u00fdch odkaz\u016f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-identity-and-access-controls\">Kontroly identity a p\u0159\u00edstupu<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ukraden\u00e9 p\u0159ihla\u0161ovac\u00ed \u00fadaje jsou u\u017eite\u010dn\u00e9 pouze tehdy, pokud je lze pou\u017e\u00edt. Vrstven\u00e9 kontroly identity toto riziko v\u00fdznamn\u011b sni\u017euj\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>V\u00edcefaktorov\u00e9 ov\u011b\u0159ov\u00e1n\u00ed (MFA)<\/strong> nap\u0159\u00ed\u010d v\u0161emi \u00fa\u010dty, se siln\u011bj\u0161\u00edmi po\u017eadavky na ov\u011b\u0159ov\u00e1n\u00ed pro u\u017eivatele s vysok\u00fdmi opr\u00e1vn\u011bn\u00edmi a vedouc\u00ed pracovn\u00edky<\/li>\n\n\n\n<li><strong>Metody MFA odoln\u00e9 proti phishingu<\/strong> jako jsou hardwarov\u00e9 bezpe\u010dnostn\u00ed kl\u00ed\u010de nebo passkeys, kter\u00e9 jsou v\u00e1z\u00e1ny na legitimn\u00ed dom\u00e9nu a nemohou b\u00fdt zachyceny podvodnou str\u00e1nkou<\/li>\n\n\n\n<li>Blokov\u00e1n\u00ed star\u0161\u00edch ov\u011b\u0159ovac\u00edch protokol\u016f, kter\u00e9 nepodporuj\u00ed MFA, \u010d\u00edm\u017e se eliminuje b\u011b\u017en\u00e1 obch\u00e1zec\u00ed cesta<\/li>\n\n\n\n<li>Z\u00e1sady podm\u00edn\u011bn\u00e9ho p\u0159\u00edstupu, kter\u00e9 ozna\u010duj\u00ed nebo blokuj\u00ed pokusy o p\u0159ihl\u00e1\u0161en\u00ed z nespravovan\u00fdch za\u0159\u00edzen\u00ed<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pro hlub\u0161\u00ed kontext o tom, jak se QR k\u00f3dy prot\u00ednaj\u00ed s ov\u011b\u0159ovac\u00edmi pracovn\u00edmi postupy, viz <a href=\"https:\/\/pageloot.com\/cs\/blog\/how-qr-codes-simplify-multi-factor-authentication\/\">jak QR k\u00f3dy zjednodu\u0161uj\u00ed v\u00edcefaktorov\u00e9 ov\u011b\u0159ov\u00e1n\u00ed<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-endpoint-and-device-protection\">Ochrana koncov\u00fdch bod\u016f a za\u0159\u00edzen\u00ed<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Spravovan\u00e1 za\u0159\u00edzen\u00ed s aktu\u00e1ln\u00edm zabezpe\u010den\u00edm koncov\u00fdch bod\u016f poskytuj\u00ed kritickou bezpe\u010dnostn\u00ed s\u00ed\u0165:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nasa\u010fte detekci a reakci na koncov\u00e9 body (EDR) na v\u0161echna spravovan\u00e1 za\u0159\u00edzen\u00ed<\/li>\n\n\n\n<li>Povolte kontroly reputace prohl\u00ed\u017ee\u010de (jako je Microsoft SmartScreen), kter\u00e9 varuj\u00ed u\u017eivatele, ne\u017e se dostanou na zn\u00e1mou phishingovou dom\u00e9nu<\/li>\n\n\n\n<li>Pou\u017eijte z\u00e1sady spr\u00e1vy mobiln\u00edch za\u0159\u00edzen\u00ed (MDM), kter\u00e9 vynucuj\u00ed bezpe\u010dnostn\u00ed z\u00e1kladn\u00ed linie na telefonech pou\u017e\u00edvan\u00fdch ke skenov\u00e1n\u00ed QR k\u00f3d\u016f pro pr\u00e1ci<\/li>\n\n\n\n<li>Omezte stahov\u00e1n\u00ed z nespravovan\u00fdch za\u0159\u00edzen\u00ed v podnikov\u00fdch s\u00edt\u00edch<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">FTC doporu\u010duje udr\u017eovat opera\u010dn\u00ed syst\u00e9my za\u0159\u00edzen\u00ed aktu\u00e1ln\u00ed a pou\u017e\u00edvat siln\u00e1, jedine\u010dn\u00e1 hesla nap\u0159\u00ed\u010d \u00fa\u010dty jako z\u00e1kladn\u00ed hygienu, kter\u00e1 sni\u017euje dopad jak\u00e9hokoli \u00fasp\u011b\u0161n\u00e9ho pokusu o phishing.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-employee-training-and-awareness\">\u0160kolen\u00ed a pov\u011bdom\u00ed zam\u011bstnanc\u016f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Va\u0161i zam\u011bstnanci jsou nejp\u0159\u00edm\u011bj\u0161\u00ed lini\u00ed obrany proti quishingu a \u0161kolen\u00ed mus\u00ed b\u00fdt explicitn\u00ed \u2013 obecn\u00e9 pov\u011bdom\u00ed o phishingu se automaticky nep\u0159en\u00e1\u0161\u00ed na hrozby QR k\u00f3d\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Efektivn\u00ed \u0161kolic\u00ed programy pokr\u00fdvaj\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pro\u010d jsou QR k\u00f3dy nebezpe\u010dn\u00e9: c\u00edl je skryt\u00fd a\u017e do skenov\u00e1n\u00ed<\/li>\n\n\n\n<li>Varovn\u00e9 sign\u00e1ly v e-mailech obsahuj\u00edc\u00edch QR k\u00f3dy: nal\u00e9havost, obecn\u00e9 pozdravy, nevy\u017e\u00e1dan\u00e9 zpr\u00e1vy od zn\u00e1m\u00fdch zna\u010dek a \u017e\u00e1dosti o p\u0159ihla\u0161ovac\u00ed \u00fadaje<\/li>\n\n\n\n<li>Zn\u00e1mky fyzick\u00e9ho manipulace: k\u00f3dy nalepen\u00e9 jako samolepky p\u0159es ti\u0161t\u011bn\u00e9 materi\u00e1ly, k\u00f3dy na neofici\u00e1ln\u00edm zna\u010den\u00ed<\/li>\n\n\n\n<li>Ov\u011b\u0159ovac\u00ed n\u00e1vyky: pokud QR k\u00f3d doraz\u00ed v neo\u010dek\u00e1van\u00e9m e-mailu, kontaktujte odes\u00edlatele prost\u0159ednictv\u00edm zn\u00e1m\u00e9ho telefonn\u00edho \u010d\u00edsla nebo ofici\u00e1ln\u00edch webov\u00fdch str\u00e1nek nam\u00edsto skenov\u00e1n\u00ed k\u00f3du<\/li>\n\n\n\n<li>Kontrola URL: po skenov\u00e1n\u00ed zkontrolujte URL v adresn\u00edm \u0159\u00e1dku prohl\u00ed\u017ee\u010de p\u0159ed zad\u00e1n\u00edm jak\u00fdchkoli p\u0159ihla\u0161ovac\u00edch \u00fadaj\u016f \u2013 hledejte p\u0159eklepy, prohozen\u00e1 p\u00edsmena nebo nezn\u00e1m\u00e9 dom\u00e9ny<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Americk\u00e9 ministerstvo zdravotnictv\u00ed a soci\u00e1ln\u00edch slu\u017eeb doporu\u010duje \u0161kolit koncov\u00e9 u\u017eivatele, aby si udr\u017eeli zdravou m\u00edru skepticismu a rozpozn\u00e1vali indik\u00e1tory, jako jsou podez\u0159el\u00e9 adresy odes\u00edlatel\u016f, podvr\u017een\u00e9 odkazy a nespr\u00e1vn\u00e1 gramatika \u2013 to v\u0161e se objevuje v phishingov\u00fdch kampan\u00edch zalo\u017een\u00fdch na QR k\u00f3dech stejn\u011b jako v t\u011bch textov\u00fdch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Prov\u00e1d\u011bjte simulovan\u00e1 quishingov\u00e1 cvi\u010den\u00ed soub\u011b\u017en\u011b se standardn\u00edmi phishingov\u00fdmi simulacemi. Zam\u011b\u0159te se na vysoce rizikov\u00e9 skupiny \u2013 vedouc\u00ed pracovn\u00edky, finan\u010dn\u00ed t\u00fdmy a kohokoli s administr\u00e1torsk\u00fdmi opr\u00e1vn\u011bn\u00edmi \u2013 s \u010dast\u011bj\u0161\u00edmi a realisti\u010dt\u011bj\u0161\u00edmi sc\u00e9n\u00e1\u0159i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pro \u0161ir\u0161\u00ed pohled na <a href=\"https:\/\/pageloot.com\/cs\/blog\/best-practices-for-qr-code-security-in-cyber-defense\/\">osv\u011bd\u010den\u00e9 postupy zabezpe\u010den\u00ed QR k\u00f3d\u016f v kybernetick\u00e9 obran\u011b<\/a>, v\u010detn\u011b \u0161ifrov\u00e1n\u00ed a p\u00e1rov\u00e1n\u00ed ov\u011b\u0159ov\u00e1n\u00ed, tato p\u0159\u00edru\u010dka podrobn\u011bji pokr\u00fdv\u00e1 technick\u00e9 kontroly.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-reporting-and-incident-response\">Hl\u00e1\u0161en\u00ed a reakce na incidenty<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Zam\u011bstnanci pot\u0159ebuj\u00ed jasn\u00fd a snadn\u00fd zp\u016fsob, jak nahl\u00e1sit podez\u0159el\u00e9 QR k\u00f3dy \u2013 jak v e-mailu, tak ve fyzick\u00fdch prostorech. Tla\u010d\u00edtko pro nahl\u00e1\u0161en\u00ed phishingu v e-mailov\u00fdch klientech odstra\u0148uje p\u0159ek\u00e1\u017eky pro digit\u00e1ln\u00ed hl\u00e1\u0161en\u00ed. Pro fyzick\u00e9 k\u00f3dy poskytn\u011bte pokyny, jak ozna\u010dit a vyfotografovat podez\u0159el\u00e9 n\u00e1lepky nebo manipulovan\u00e9 materi\u00e1ly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e1\u0161 pl\u00e1n reakce na incidenty by m\u011bl konkr\u00e9tn\u011b \u0159e\u0161it sc\u00e9n\u00e1\u0159e quishing s definovan\u00fdmi kroky:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Izolujte jak\u00fdkoli \u00fa\u010det, kter\u00fd mohl odeslat p\u0159ihla\u0161ovac\u00ed \u00fadaje prost\u0159ednictv\u00edm \u0161kodliv\u00e9ho QR k\u00f3du<\/li>\n\n\n\n<li>Okam\u017eit\u011b zru\u0161te aktivn\u00ed relace a resetujte hesla<\/li>\n\n\n\n<li>Zkontrolujte neopr\u00e1vn\u011bn\u00fd p\u0159\u00edstup nebo pohyb dat v okn\u011b mezi skenov\u00e1n\u00edm a reakc\u00ed<\/li>\n\n\n\n<li>Informujte posti\u017een\u00e9 osoby v souladu s va\u0161\u00ed z\u00e1sadou oznamov\u00e1n\u00ed naru\u0161en\u00ed<\/li>\n\n\n\n<li>Prove\u010fte p\u0159ezkum po incidentu, abyste zjistili, jak QR k\u00f3d obe\u0161el st\u00e1vaj\u00edc\u00ed kontroly<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Prove\u010fte penetra\u010dn\u00ed testov\u00e1n\u00ed, kter\u00e9 zahrnuje sc\u00e9n\u00e1\u0159e quishing, abyste na\u0161li mezery d\u0159\u00edve, ne\u017e to ud\u011blaj\u00ed \u00fato\u010dn\u00edci.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-qr-codes-your-business-deploys-securing-your-own-codes\">QR k\u00f3dy, kter\u00e9 va\u0161e firma nasazuje: Zabezpe\u010den\u00ed vlastn\u00edch k\u00f3d\u016f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Prevence quishing tak\u00e9 znamen\u00e1 zajistit, aby QR k\u00f3dy, kter\u00e9 va\u0161e firma zve\u0159ej\u0148uje, nemohly b\u00fdt zneu\u017eity proti va\u0161im z\u00e1kazn\u00edk\u016fm nebo zam\u011bstnanc\u016fm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pou\u017e\u00edvejte dynamick\u00e9 QR k\u00f3dy nam\u00edsto statick\u00fdch.<\/strong> Statick\u00e9 k\u00f3dy trvale k\u00f3duj\u00ed c\u00edlovou URL adresu. Pokud je tento c\u00edl n\u011bkdy kompromitov\u00e1n, k\u00f3d se stane z\u00e1vazkem, kter\u00fd nem\u016f\u017eete opravit bez op\u011btovn\u00e9ho tisku. <a href=\"https:\/\/pageloot.com\/cs\/dynamic-qr-code-generator\/\">Dynamick\u00e9 QR k\u00f3dy<\/a> odkazuj\u00ed na kr\u00e1tkou p\u0159esm\u011brovac\u00ed URL adresu, kterou ovl\u00e1d\u00e1te \u2013 m\u016f\u017eete aktualizovat c\u00edl, p\u0159esm\u011brovat na novou str\u00e1nku nebo k\u00f3d zcela zak\u00e1zat z \u0159\u00eddic\u00edho panelu spr\u00e1vy, ani\u017e byste se dotkli ti\u0161t\u011bn\u00e9ho materi\u00e1lu.<\/p>\n\n\n\n<blockquote class=\"is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>M\u011bjte sv\u00e9 zve\u0159ejn\u011bn\u00e9 QR k\u00f3dy pod kontrolou<\/strong> Pokud m\u00e1te podez\u0159en\u00ed, \u017ee jeden z va\u0161ich nasazen\u00fdch k\u00f3d\u016f byl zmanipulov\u00e1n nebo odkazuje na nebezpe\u010dn\u00e9 m\u00edsto, m\u016f\u017eete jej okam\u017eit\u011b aktualizovat nebo zak\u00e1zat. Pou\u017eijte <a href=\"https:\/\/pageloot.com\/cs\/dynamic-qr-code-generator\/\">Dynamick\u00fd QR k\u00f3d<\/a> ke spr\u00e1v\u011b v\u0161ech va\u0161ich k\u00f3d\u016f z centralizovan\u00e9ho \u0159\u00eddic\u00edho panelu s anal\u00fdzou skenov\u00e1n\u00ed v re\u00e1ln\u00e9m \u010dase.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pou\u017eijte konzistentn\u00ed branding pro va\u0161e k\u00f3dy.<\/strong> Sedmdes\u00e1t jedna procent lid\u00ed nedok\u00e1\u017ee spolehliv\u011b rozli\u0161it fale\u0161n\u00fd QR k\u00f3d od legitimn\u00edho. Zna\u010dkov\u00e9 QR k\u00f3dy \u2013 s va\u0161\u00edm logem, firemn\u00edmi barvami a vlastn\u00ed dom\u00e9nou v c\u00edlov\u00e9 URL adrese \u2013 d\u00e1vaj\u00ed u\u017eivatel\u016fm vizu\u00e1ln\u00ed sign\u00e1l, \u017ee k\u00f3d je autentick\u00fd. Obecn\u00e9 \u010dernob\u00edl\u00e9 QR k\u00f3dy s nepr\u016fhledn\u00fdmi kr\u00e1tk\u00fdmi URL adresami takovou z\u00e1ruku neposkytuj\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Sledujte analytiku skenov\u00e1n\u00ed pro anom\u00e1lie.<\/strong> Dynamick\u00e9 QR k\u00f3dy shroma\u017e\u010fuj\u00ed data o skenov\u00e1n\u00ed v\u010detn\u011b \u010dasov\u00fdch raz\u00edtek, typ\u016f za\u0159\u00edzen\u00ed a geografick\u00fdch poloh. N\u00e1hl\u00fd n\u00e1r\u016fst skenov\u00e1n\u00ed z neo\u010dek\u00e1van\u00fdch region\u016f nebo aktivita skenov\u00e1n\u00ed mimo b\u011b\u017enou pracovn\u00ed dobu m\u016f\u017ee nazna\u010dovat, \u017ee jeden z va\u0161ich k\u00f3d\u016f byl zkop\u00edrov\u00e1n a \u0161kodliv\u011b redistribuov\u00e1n. Analytick\u00fd panel Pageloot odhaluje tyto vzorce, abyste mohli rychle pro\u0161et\u0159it a reagovat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Podrobn\u00fd pohled na to, jak\u00e1 data o skenov\u00e1n\u00ed va\u0161e k\u00f3dy shroma\u017e\u010fuj\u00ed a jak je zodpov\u011bdn\u011b interpretovat, naleznete v <a href=\"https:\/\/pageloot.com\/cs\/blog\/dynamic-qr-codes-what-data-is-collected\/\">pochopen\u00ed, jak\u00e1 data sleduj\u00ed va\u0161e dynamick\u00e9 QR k\u00f3dy<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Prov\u00e1d\u011bjte pravideln\u00e9 fyzick\u00e9 audity.<\/strong> U v\u0161ech QR k\u00f3d\u016f zobrazen\u00fdch na ve\u0159ejn\u00fdch nebo polove\u0159ejn\u00fdch m\u00edstech \u2013 na stolech v restaurac\u00edch, na zna\u010den\u00ed ud\u00e1lost\u00ed, na displej\u00edch vozidel nebo ve v\u00fdloh\u00e1ch obchod\u016f \u2013 fyzicky kontrolujte k\u00f3dy v pravideln\u00fdch intervalech. Hledejte n\u00e1lepky um\u00edst\u011bn\u00e9 p\u0159es p\u016fvodn\u00ed k\u00f3d a otestujte c\u00edl ka\u017ed\u00e9ho k\u00f3du, ne\u017e se s n\u00edm setkaj\u00ed z\u00e1kazn\u00edci.<\/p>\n\n\n\n<figure><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/05\/staff-inspecting-qr-192004-71336d039337.webp\" alt=\"Audit QR k\u00f3d\u016f\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pou\u017e\u00edvejte v\u00fdhradn\u011b HTTPS c\u00edle.<\/strong> Ka\u017ed\u00e1 URL adresa, na kterou va\u0161e QR k\u00f3dy odkazuj\u00ed, by m\u011bla pou\u017e\u00edvat HTTPS. Odes\u00edl\u00e1n\u00ed u\u017eivatel\u016f na ne\u0161ifrovan\u00fd HTTP c\u00edl podkop\u00e1v\u00e1 d\u016fv\u011bru a vystavuje data b\u011bhem p\u0159enosu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pro dal\u0161\u00ed pokyny ohledn\u011b <a href=\"https:\/\/pageloot.com\/cs\/blog\/qr-code-privacy-risks-and-how-to-avoid-them\/\">rizik pro soukrom\u00ed QR k\u00f3d\u016f a jak se jim vyhnout<\/a>, v\u010detn\u011b toho, jak vyv\u00e1\u017eit analytiku s ochranou soukrom\u00ed u\u017eivatel\u016f, tento zdroj pokr\u00fdv\u00e1 datov\u00e9 aspekty, kter\u00e9 podniky \u010dasto p\u0159ehl\u00ed\u017eej\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-evaluating-detection-tools\">Hodnocen\u00ed detek\u010dn\u00edch n\u00e1stroj\u016f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160kolen\u00ed zam\u011bstnanc\u016f a kontroly platformy \u0159e\u0161\u00ed v\u00fdznamnou \u010d\u00e1st rizika, ale specializovan\u00e9 detek\u010dn\u00ed n\u00e1stroje p\u0159id\u00e1vaj\u00ed dal\u0161\u00ed vrstvu \u2013 zejm\u00e9na pro organizace s vysok\u00fdm objemem e-mail\u016f nebo komplexn\u00edmi nasazen\u00edmi QR k\u00f3d\u016f. Pokud vyhodnocujete mo\u017enosti, <a href=\"https:\/\/pageloot.com\/cs\/blog\/top-tools-to-detect-qr-code-phishing\/\">n\u00e1stroje ur\u010den\u00e9 k detekci QR k\u00f3dov\u00e9ho phishingu<\/a> sahaj\u00ed od podnikov\u00fdch platforem pro behavior\u00e1ln\u00ed anal\u00fdzu po dopl\u0148ky e-mailov\u00fdch bran a mobiln\u00ed skenovac\u00ed aplikace s vestav\u011bn\u00fdmi kontrolami reputace.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spr\u00e1vn\u00e1 kombinace z\u00e1vis\u00ed na va\u0161em st\u00e1vaj\u00edc\u00edm bezpe\u010dnostn\u00edm bal\u00ed\u010dku, objemu QR k\u00f3d\u016f, kter\u00e9 p\u0159ij\u00edm\u00e1te versus nasazujete, a na tom, zda je fyzick\u00e9 manipulace v\u00fdznamn\u00fdm probl\u00e9mem pro va\u0161e lokality. Quishing nen\u00ed hypotetick\u00e1 hrozba. P\u0159edstavuje v\u00fdznamn\u00fd pod\u00edl skute\u010dn\u00e9 phishingov\u00e9 aktivity, obch\u00e1z\u00ed kontroly, kter\u00e9 v\u011bt\u0161ina organizac\u00ed ji\u017e m\u00e1 zaveden\u00e9, a ne\u00fam\u011brn\u011b c\u00edl\u00ed na podniky a u\u017eivatele, kte\u0159\u00ed jsou nejm\u00e9n\u011b vybaveni k jeho rozpozn\u00e1n\u00ed. Uzav\u0159en\u00ed t\u00e9to mezery vy\u017eaduje \u00famysln\u00e9 kroky v oblasti zabezpe\u010den\u00ed e-mail\u016f, kontrol identity, \u0161kolen\u00ed zam\u011bstnanc\u016f a QR k\u00f3d\u016f, kter\u00e9 sami publikujete.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Za\u010dn\u011bte s kontrolami, kter\u00e9 m\u016f\u017eete implementovat okam\u017eit\u011b \u2013 MFA, pov\u011bdom\u00ed zam\u011bstnanc\u016f a p\u0159epnut\u00ed va\u0161ich publikovan\u00fdch k\u00f3d\u016f na dynamickou spr\u00e1vu \u2013 a pot\u00e9 budujte vrstvenou obranu, kter\u00e1 zajist\u00ed, \u017ee quishingov\u00e9 \u00fatoky budou proti va\u0161\u00ed organizaci trvale ne\u00fasp\u011b\u0161n\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-frequently-asked-questions\">\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n\n\n\n<div class=\"schema-faq\"><div class=\"schema-faq-section\" id=\"faq-question-0a142415e7ad\"><strong class=\"schema-faq-question\">Jak\u00fd je rozd\u00edl mezi QR k\u00f3d phishingem a b\u011b\u017en\u00fdm phishingem?<\/strong> <p class=\"schema-faq-answer\">B\u011b\u017en\u00fd phishing obvykle pou\u017e\u00edv\u00e1 viditeln\u00e9 URL adresy v textu e-mailu nebo hypertextov\u00e9 odkazy, kter\u00e9 m\u016f\u017ee vy\u0161kolen\u00fd u\u017eivatel zkontrolovat p\u0159ed kliknut\u00edm. Phishing pomoc\u00ed QR k\u00f3d\u016f zcela skr\u00fdv\u00e1 c\u00edl \u2013 \u0161kodliv\u00e1 URL adresa je zak\u00f3dov\u00e1na uvnit\u0159 obr\u00e1zku, neviditeln\u00e1 a\u017e do naskenov\u00e1n\u00ed. To tak\u00e9 zt\u011b\u017euje detekci e-mailov\u00fdm bezpe\u010dnostn\u00edm filtr\u016fm, proto\u017ee vid\u00ed obr\u00e1zek nam\u00edsto odkazu. V\u00fdsledkem je, \u017ee phishing pomoc\u00ed QR k\u00f3d\u016f obch\u00e1z\u00ed mnoho kontrol, kter\u00e9 \u00fa\u010dinn\u011b zachycuj\u00ed textov\u00fd phishing.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-68f0add58204\"><strong class=\"schema-faq-question\">Jak se mohou mal\u00e9 podniky chr\u00e1nit, pokud maj\u00ed omezen\u00fd rozpo\u010det na zabezpe\u010den\u00ed?<\/strong> <p class=\"schema-faq-answer\">Zam\u011b\u0159te se nejprve na nejd\u016fle\u017eit\u011bj\u0161\u00ed kontroln\u00ed mechanismy: aktivujte v\u00edcefaktorov\u00e9 ov\u011b\u0159ov\u00e1n\u00ed na v\u0161ech \u00fa\u010dtech, vy\u0161kolte zam\u011bstnance, aby pova\u017eovali neo\u010dek\u00e1van\u00e9 QR k\u00f3dy za podez\u0159el\u00e9 a ov\u011b\u0159ovali je prost\u0159ednictv\u00edm nez\u00e1visl\u00fdch kan\u00e1l\u016f, a p\u0159epn\u011bte v\u0161echny zve\u0159ejn\u011bn\u00e9 QR k\u00f3dy ze statick\u00fdch na dynamick\u00e9, abyste je mohli aktualizovat nebo zak\u00e1zat, pokud je zji\u0161t\u011bn probl\u00e9m. Tyto kroky stoj\u00ed m\u00e1lo a eliminuj\u00ed nejb\u011b\u017en\u011bj\u0161\u00ed \u00fato\u010dn\u00e9 cesty. Pou\u017e\u00edvejte skener QR k\u00f3d\u016f s funkc\u00ed n\u00e1hledu URL p\u0159ed skenov\u00e1n\u00edm nezn\u00e1m\u00fdch k\u00f3d\u016f a zave\u010fte jasn\u00fd proces pro zam\u011bstnance k hl\u00e1\u0161en\u00ed podez\u0159el\u00fdch k\u00f3d\u016f IT odd\u011blen\u00ed.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-0d855702ce5e\"><strong class=\"schema-faq-question\">Pro\u010d jsou dynamick\u00e9 QR k\u00f3dy bezpe\u010dn\u011bj\u0161\u00ed pro firmy ne\u017e statick\u00e9?<\/strong> <p class=\"schema-faq-answer\">Statick\u00e9 QR k\u00f3dy trvale k\u00f3duj\u00ed c\u00edlovou URL adresu. Pokud je tato URL adresa kompromitov\u00e1na \u2013 nebo pokud \u00fato\u010dn\u00edk zkop\u00edruje v\u00e1\u0161 k\u00f3d a redistribuuje jej s odkazem na \u0161kodliv\u00fd web \u2013 nem\u00e1te \u017e\u00e1dn\u00fd zp\u016fsob, jak opravit p\u016fvodn\u00ed vyti\u0161t\u011bn\u00fd k\u00f3d bez op\u011btovn\u00e9ho tisku v\u0161eho. Dynamick\u00e9 QR k\u00f3dy sm\u011bruj\u00ed p\u0159es kr\u00e1tkou p\u0159esm\u011brovac\u00ed URL adresu, kterou centr\u00e1ln\u011b ovl\u00e1d\u00e1te. M\u016f\u017eete zm\u011bnit c\u00edl, p\u0159idat ochranu heslem, nastavit data vypr\u0161en\u00ed platnosti a monitorovat aktivitu skenov\u00e1n\u00ed v re\u00e1ln\u00e9m \u010dase. Pokud n\u011bco vypad\u00e1 \u0161patn\u011b, m\u016f\u017eete k\u00f3d okam\u017eit\u011b deaktivovat. Tato kombinace flexibility a viditelnosti \u010din\u00ed dynamick\u00e9 k\u00f3dy v\u00fdrazn\u011b bezpe\u010dn\u011bj\u0161\u00edmi pro jak\u00fdkoli QR k\u00f3d pou\u017e\u00edvan\u00fd v kontextech s ve\u0159ejnost\u00ed nebo v prob\u00edhaj\u00edc\u00edch obchodn\u00edch kontextech.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>Chra\u0148te sv\u00e9 podnik\u00e1n\u00ed p\u0159ed phishingem pomoc\u00ed QR k\u00f3d\u016f. Zjist\u011bte, jak funguj\u00ed quishingov\u00e9 \u00fatoky a objevte vrstven\u00e1 bezpe\u010dnostn\u00ed opat\u0159en\u00ed, jako je MFA a filtrov\u00e1n\u00ed OCR, k jejich zastaven\u00ed.<\/p>","protected":false},"author":17,"featured_media":54101,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[2635],"tags":[],"class_list":["post-37652","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>QR Code Phishing: Business Risks and Fixes<\/title>\n<meta name=\"description\" content=\"QR code phishing is surging, posing serious risks to businesses through credential theft and financial loss. 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D\u00edky sv\u00fdm hlubok\u00fdm odborn\u00fdm znalostem, kter\u00e9 se v\u00edce ne\u017e 5 let t\u00fdkaj\u00ed v\u00fdhradn\u011b QR k\u00f3d\u016f, se Siim stal odborn\u00edkem v t\u00e9to oblasti. V\u00fdznamn\u011b se zasazuje o vyu\u017eit\u00ed technologie QR ke zjednodu\u0161en\u00ed a roz\u0161\u00ed\u0159en\u00ed digit\u00e1ln\u00edch interakc\u00ed. Jeho cesta v\u0161ak neza\u010dala jen zde. Siim m\u00e1 rozs\u00e1hl\u00e9 digit\u00e1ln\u00ed z\u00e1zem\u00ed s v\u00edce ne\u017e desetilet\u00fdmi solidn\u00edmi zku\u0161enostmi v oblasti softwaru jako slu\u017eby (SaaS), co\u017e sv\u011bd\u010d\u00ed o jeho hluboce zako\u0159en\u011bn\u00fdch znalostech v oblasti digit\u00e1ln\u00edch \u0159e\u0161en\u00ed.","sameAs":["https:\/\/www.linkedin.com\/in\/siim-tiigimagi\/"]},{"@type":"Question","@id":"https:\/\/pageloot.com\/blog\/qr-code-phishing-business-risks-and-fixes\/#faq-question-0a142415e7ad","position":1,"url":"https:\/\/pageloot.com\/blog\/qr-code-phishing-business-risks-and-fixes\/#faq-question-0a142415e7ad","name":"Jak\u00fd je rozd\u00edl mezi QR k\u00f3d phishingem a b\u011b\u017en\u00fdm phishingem?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Regular phishing typically uses visible URLs in email text or hyperlinks that a trained user can inspect before clicking. QR code phishing conceals the destination entirely \u2013 the malicious URL is encoded inside the image, invisible until after scanning. This also makes it harder for email security filters to detect, since they see an image rather than a link. The result is that QR code phishing bypasses many controls that effectively catch text-based phishing.","inLanguage":"cs"},"inLanguage":"cs"},{"@type":"Question","@id":"https:\/\/pageloot.com\/blog\/qr-code-phishing-business-risks-and-fixes\/#faq-question-68f0add58204","position":2,"url":"https:\/\/pageloot.com\/blog\/qr-code-phishing-business-risks-and-fixes\/#faq-question-68f0add58204","name":"Jak se mohou mal\u00e9 podniky chr\u00e1nit, pokud maj\u00ed omezen\u00fd rozpo\u010det na zabezpe\u010den\u00ed?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Focus on the highest-impact controls first: enable multi-factor authentication on all accounts, train employees to treat unexpected QR codes as suspicious and verify through independent channels, and switch any published QR codes from static to dynamic so you can update or disable them if a problem is detected. These steps cost little and eliminate the most common attack paths. Use a QR code scanner with URL preview capability before scanning unknown codes, and establish a clear process for employees to report suspicious codes to IT.","inLanguage":"cs"},"inLanguage":"cs"},{"@type":"Question","@id":"https:\/\/pageloot.com\/blog\/qr-code-phishing-business-risks-and-fixes\/#faq-question-0d855702ce5e","position":3,"url":"https:\/\/pageloot.com\/blog\/qr-code-phishing-business-risks-and-fixes\/#faq-question-0d855702ce5e","name":"Pro\u010d jsou dynamick\u00e9 QR k\u00f3dy bezpe\u010dn\u011bj\u0161\u00ed pro firmy ne\u017e statick\u00e9?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Static QR codes permanently encode a destination URL. If that URL is compromised \u2013 or if an attacker copies your code and redistributes it pointing to a malicious site \u2013 you have no way to correct the original printed code without reprinting everything. Dynamic QR codes route through a short redirect URL that you control centrally. You can change the destination, add password protection, set expiration dates, and monitor scan activity in real time. If something looks wrong, you can disable the code immediately. That combination of flexibility and visibility makes dynamic codes significantly safer for any QR code used in public-facing or ongoing business contexts.","inLanguage":"cs"},"inLanguage":"cs"}]}},"_links":{"self":[{"href":"https:\/\/pageloot.com\/cs\/wp-json\/wp\/v2\/posts\/37652","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pageloot.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pageloot.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pageloot.com\/cs\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/pageloot.com\/cs\/wp-json\/wp\/v2\/comments?post=37652"}],"version-history":[{"count":15,"href":"https:\/\/pageloot.com\/cs\/wp-json\/wp\/v2\/posts\/37652\/revisions"}],"predecessor-version":[{"id":54977,"href":"https:\/\/pageloot.com\/cs\/wp-json\/wp\/v2\/posts\/37652\/revisions\/54977"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pageloot.com\/cs\/wp-json\/wp\/v2\/media\/54101"}],"wp:attachment":[{"href":"https:\/\/pageloot.com\/cs\/wp-json\/wp\/v2\/media?parent=37652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pageloot.com\/cs\/wp-json\/wp\/v2\/categories?post=37652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pageloot.com\/cs\/wp-json\/wp\/v2\/tags?post=37652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}