{"id":4748,"date":"2023-05-30T14:27:10","date_gmt":"2023-05-30T12:27:10","guid":{"rendered":"https:\/\/www.websupport.cz\/blog\/?p=4748"},"modified":"2025-03-11T21:18:29","modified_gmt":"2025-03-11T20:18:29","slug":"jak-se-branit-podvodnikum-na-internetu","status":"publish","type":"post","link":"https:\/\/www.websupport.cz\/blog\/2023\/05\/jak-se-branit-podvodnikum-na-internetu\/","title":{"rendered":"Jak se br\u00e1nit podvodn\u00edk\u016fm na internetu?"},"content":{"rendered":"\n<p><em>V posledn\u00ed dob\u011b se objevuje st\u00e1le v\u00edce \u00fanik\u016f osobn\u00edch \u00fadaj\u016f p\u0159ev\u00e1\u017en\u011b ze soci\u00e1ln\u00edch s\u00edt\u00ed. Tyto \u00fadaje jsou pak vyu\u017e\u00edv\u00e1ny pro hackersk\u00e9 \u00fatoky. \u010c\u00edm v\u00edc dat \u00fato\u010dn\u00edk o ob\u011bti z\u00edsk\u00e1, t\u00edm v\u011bt\u0161\u00ed je ohro\u017een\u00ed potenci\u00e1ln\u00ed ob\u011bti. Proto je nejvy\u0161\u0161\u00ed \u010das nau\u010dit se efektivn\u011b br\u00e1nit.<\/em><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Soci\u00e1ln\u00ed in\u017een\u00fdrstv\u00ed<\/strong><\/h4>\n\n\n\n<p>Jde o manipulaci prost\u0159ednictv\u00edm zneu\u017eit\u00ed lidsk\u00fdch vlastnost\u00ed, jak\u00fdmi jsou t\u0159eba zv\u011bdavost \u010di l\u00edtost. \u00dato\u010dn\u00edk se tak\u00e9 sna\u017e\u00ed dostat ob\u011b\u0165 pod \u010dasov\u00fd tlak a donutit ji konat un\u00e1hlen\u011b. Jedn\u00e1 se <strong>o jednu z nejjednodu\u0161\u0161\u00edch<\/strong> a z\u00e1rove\u0148 <strong>nej\u00fasp\u011b\u0161n\u011bj\u0161\u00edch technik vyu\u017e\u00edvan\u00fdch p\u0159i online \u00fatoc\u00edch<\/strong>.<\/p>\n\n\n\n<p>Mo\u017en\u00e1 si \u0159\u00edk\u00e1te, \u017ee zrovna o va\u0161e \u00fadaje nikdo nestoj\u00ed a \u017ee pro \u00fato\u010dn\u00edky nejste nijak zaj\u00edmav\u00ed. Opak je pravdou. M\u00e1te svou identitu, kter\u00e1 se d\u00e1 zneu\u017e\u00edt k trestn\u00e9 \u010dinnosti. Jste uzlem v s\u00edti, p\u0159es kter\u00fd se \u00fato\u010dn\u00edci mohou dostat k va\u0161im p\u0159\u00e1tel\u016fm, zn\u00e1m\u00fdm, spolupracovn\u00edk\u016fm \u010di obchodn\u00edm partner\u016fm. M\u00e1te po\u010d\u00edta\u010d, telefon nebo tablet, kter\u00e9 se daj\u00ed ovl\u00e1dnout a zneu\u017e\u00edt na \u0159\u00edzen\u00e9 \u00fatoky. C\u00edlem mohou b\u00fdt i va\u0161e \u00fa\u010dty na soci\u00e1ln\u00edch s\u00edt\u00edch. V neposledn\u00ed \u0159ad\u011b m\u00e1te pen\u00edze, kter\u00e9 jsou zaj\u00edmav\u00e9 v\u017edycky.&nbsp;<\/p>\n\n\n\n<p>Pr\u00e1v\u011b vy jste tak velmi d\u016fle\u017eit\u00fd \u010dl\u00e1nek. A proto je nevyhnuteln\u00e9 um\u011bt se chr\u00e1nit, pokud se nechcete st\u00e1t loutkou v ruk\u00e1ch tzv. soci\u00e1ln\u00edch in\u017een\u00fdr\u016f.&nbsp;<\/p>\n\n\n\n<p><strong>Phishing<\/strong><\/p>\n\n\n\n<p>Pat\u0159\u00ed mezi nej\u010dast\u011bj\u0161\u00ed formy \u00fatok\u016f a pravd\u011bpodobn\u011b jste se s n\u00edm ji\u017e n\u011bkdy setkali. P\u0159ijde v\u00e1m e-mail ze zn\u00e1m\u00e9 instituce \u010di velk\u00e9 spole\u010dnosti, v n\u011bm\u017e jste \u017e\u00e1d\u00e1ni o \u00fahradu slu\u017eby, kterou jste si v\u016fbec neobjednali, nebo o vypln\u011bn\u00ed va\u0161ich \u00fadaj\u016f pod r\u016fzn\u00fdmi z\u00e1minkami.&nbsp;<\/p>\n\n\n\n<p>V phishingov\u00e9m e-mailu se obvykle nach\u00e1z\u00ed odkaz (link nebo tla\u010d\u00edtko), kter\u00fd v\u00e1s p\u0159esm\u011bruje na fale\u0161nou webovou str\u00e1nku, kter\u00e1 je t\u011b\u017eko rozeznateln\u00e1 od t\u00e9 skute\u010dn\u00e9. Pokud takovou nepravost v\u010das neodhal\u00edte, zad\u00e1te sv\u00e9 p\u0159ihla\u0161ovac\u00ed \u00fadaje p\u0159\u00edmo \u00fato\u010dn\u00edkovi, p\u0159\u00edpadn\u011b mu rovnou po\u0161lete pen\u00edze. Pokud mu dokonce po\u0161lete \u00fadaje sv\u00e9 platebn\u00ed karty, umo\u017en\u00edte mu platit opakovan\u011b.<\/p>\n\n\n\n<p>V\u017edy je nutn\u00e9 pe\u010dliv\u011b si ov\u011b\u0159it adresn\u00ed \u0159\u00e1dek v prohl\u00ed\u017ee\u010di, kter\u00fd mus\u00ed obsahovat n\u00e1zev spole\u010dnosti, u kter\u00e9 budete sv\u00e9 citliv\u00e9 \u00fadaje zad\u00e1vat.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>4 rady, jak se br\u00e1nit proti phishingu<\/strong><\/h4>\n\n\n\n<p>P\u0159edstavte si, \u017ee jste dostali e-mail, jeho\u017e odes\u00edlatelem m\u00e1 b\u00fdt d\u016fv\u011bryhodn\u00e1 instituce \u010di dodavatel, kter\u00fd od v\u00e1s \u017e\u00e1d\u00e1 zaplacen\u00ed za slu\u017ebu. Podobn\u00e9 e-maily toti\u017e na\u0161im z\u00e1kazn\u00edk\u016fm chod\u00ed neust\u00e1le. Jak tedy postupovat p\u0159i prvn\u00edm podez\u0159en\u00ed?<\/p>\n\n\n\n<p><strong>1. Zamyslete se nad re\u00e1ln\u00fdm d\u016fvodem, pro\u010d jste takov\u00fd e-mail dostali<\/strong><\/p>\n\n\n\n<p>Objednali jste si v posledn\u00ed dob\u011b n\u011bjakou slu\u017ebu? Bl\u00ed\u017e\u00ed se splatnost slu\u017eby, kterou dlouhodob\u011b vyu\u017e\u00edv\u00e1te?&nbsp;<\/p>\n\n\n\n<p><strong>2. Zkontrolujte skute\u010dn\u00e9ho odes\u00edlatele e-mailu<\/strong><\/p>\n\n\n\n<p>V e-mailu se v\u00e1m v\u017edy zobrazuje jm\u00e9no odes\u00edlatele. \u00dato\u010dn\u00edk si v\u011bt\u0161inou d\u00e1 pr\u00e1ci s t\u00edm, aby zpr\u00e1va p\u016fsobila d\u016fv\u011bryhodn\u011b. D\u016fle\u017eit\u00e9 ale je zkontrolovat <strong>e-mailovou adresu odes\u00edlatele<\/strong>. Uk\u00e1\u017eeme si to na autentick\u00fdch p\u0159\u00edkladech podvodn\u00fdch e-mail\u016f.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2023\/05\/1-1.png\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2023\/05\/1-1.png\" alt=\"\" class=\"wp-image-4781\" srcset=\"https:\/\/www.websupport.cz\/blog\/app\/uploads\/2023\/05\/1-1.png 800w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2023\/05\/1-1-300x225.png 300w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2023\/05\/1-1-768x576.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n\n\n\n<p>Je na prvn\u00ed pohled z\u0159ejm\u00e9, \u017ee e-mail nep\u0159i\u0161el z ofici\u00e1ln\u00ed adresy.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2023\/06\/WS-CZ-phishing-blog-52023-800-\u00d7-600px.png\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2023\/06\/WS-CZ-phishing-blog-52023-800-\u00d7-600px.png\" alt=\"\" class=\"wp-image-4793\" srcset=\"https:\/\/www.websupport.cz\/blog\/app\/uploads\/2023\/06\/WS-CZ-phishing-blog-52023-800-\u00d7-600px.png 800w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2023\/06\/WS-CZ-phishing-blog-52023-800-\u00d7-600px-300x225.png 300w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2023\/06\/WS-CZ-phishing-blog-52023-800-\u00d7-600px-768x576.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n\n\n\n<p><strong>3. Zkontrolujte p\u0159edm\u011bt zpr\u00e1vy<\/strong><\/p>\n\n\n\n<p>Je text p\u0159edm\u011btu napsan\u00fd spr\u00e1vn\u011b? \u00dato\u010dn\u00edci k upout\u00e1n\u00ed pozornosti adres\u00e1ta \u010dasto pou\u017e\u00edvaj\u00ed v p\u0159edm\u011btu e-mailu zn\u00e1m\u00e9 zkratky jako \u201eRE:\u201c nebo \u201eFWD:\u201c. Tak\u017ee p\u0159edm\u011bt m\u016f\u017ee zn\u00edt nap\u0159\u00edklad \u201eRE: VR\u00c1CEN\u00cd PLATBY\u201c. Ruku na srdce, \u010dlov\u011bk pak skute\u010dn\u011b m\u00e1 siln\u00e9 nutk\u00e1n\u00ed takov\u00fd e-mail otev\u0159\u00edt. C\u00edlem je toti\u017e vyvolat u adres\u00e1ta dojem, \u017ee jde o sou\u010d\u00e1st ji\u017e existuj\u00edc\u00ed konverzace, p\u0159\u00edpadn\u011b dokonce o odpov\u011b\u010f na jeho vlastn\u00ed e-mail. T\u00edm se tud\u00ed\u017e \u0161ance na otev\u0159en\u00ed e-mailu zvy\u0161uje.&nbsp;<\/p>\n\n\n\n<p><strong>4. E-mail \u010dt\u011bte pe\u010dliv\u011b (klidn\u011b dvakr\u00e1t) a v\u0161\u00edmejte si jazykov\u00e9ho stylu i chyb<\/strong><\/p>\n\n\n\n<p>V\u011bt\u0161inou jde o automatick\u00e9 p\u0159eklady text\u016f z ciz\u00edho jazyka. Upozornit v\u00e1s m\u016f\u017ee minim\u00e1ln\u011b to, \u017ee sd\u011blen\u00ed zn\u00ed nep\u0159irozen\u011b a obsahuje chyby.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2023\/05\/3.png\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.websupport.cz\/blog\/wp-content\/uploads\/2023\/05\/3.png\" alt=\"\" class=\"wp-image-4763\" srcset=\"https:\/\/www.websupport.cz\/blog\/app\/uploads\/2023\/05\/3.png 800w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2023\/05\/3-300x225.png 300w, https:\/\/www.websupport.cz\/blog\/app\/uploads\/2023\/05\/3-768x576.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n\n\n\n<p><strong>Chyby viditeln\u00e9 na prvn\u00ed pohled<\/strong><\/p>\n\n\n\n<p>Projd\u011bme si z\u00e1kladn\u00ed chyby, kter\u00e9 lze snadno odhalit:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>dvojte\u010dka za osloven\u00edm,<\/li><li>absence \u010di nespr\u00e1vn\u00e9 pou\u017eit\u00ed interpunkce v cel\u00e9m textu,<\/li><li>chybn\u00e9 sklo\u0148ov\u00e1n\u00ed,<\/li><li>slova v ciz\u00edm jazyce,<\/li><li>nespr\u00e1vn\u00e9 ozna\u010den\u00ed odes\u00edlatele,<\/li><li>chyb\u011bj\u00edc\u00ed e-mailov\u00fd podpis (jm\u00e9no a p\u0159\u00edjmen\u00ed, funkce \u010di odd\u011blen\u00ed, kontakt atp.).<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Doporu\u010den\u00ed na z\u00e1v\u011br<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>Neklikejte na odkazy v podez\u0159el\u00fdch e-mailech. Pokud si nejste jist\u00ed, rad\u0161i si otev\u0159ete str\u00e1nku poskytovatele slu\u017eeb p\u0159\u00edmo v prohl\u00ed\u017ee\u010di.&nbsp;<\/li><li>Vyp\u011bstujte si n\u00e1vyk rychl\u00e9 kontroly z\u00e1kladn\u00edch n\u00e1le\u017eitost\u00ed v doru\u010den\u00e9m e-mailu:&nbsp;<ul><li>e-mail odes\u00edlatele,<\/li><li>spr\u00e1vnost textu,<\/li><li>link v e-mailu,<\/li><li>urgentnost e-mailu,<\/li><li>smysl e-mailu.<\/li><\/ul><\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li>Pokud cokoliv nesed\u00ed, jd\u011bte na ofici\u00e1ln\u00ed web, p\u0159\u00edpadn\u011b rovnou kontaktujte danou instituci \u010di spole\u010dnost.<\/li><li>Kdy\u017e v podez\u0159el\u00e9m e-mailu najedete kurzorem na odkaz nebo tla\u010d\u00edtko, na n\u011bj\u017e je dle n\u00e1vodu t\u0159eba kliknout, bez kliknut\u00ed se v\u00e1m na spodn\u00edm (stavov\u00e9m) \u0159\u00e1dku prohl\u00ed\u017ee\u010de \/ e-mailov\u00e9ho klienta uk\u00e1\u017ee skute\u010dn\u00e1 (c\u00edlov\u00e1) URL adresa. Z t\u00e9 bude z\u0159ejm\u00e9, m\u00e1-li opravdu n\u011bco spole\u010dn\u00e9ho s ofici\u00e1ln\u00ed str\u00e1nkou \u00fadajn\u00e9ho odes\u00edlatele.&nbsp;<\/li><li>V p\u0159\u00edpad\u011b, \u017ee jste se stali ob\u011bt\u00ed phishingu, ihned si zm\u011b\u0148te p\u0159ihla\u0161ovac\u00ed \u00fadaje, zablokujte platebn\u00ed kartu a co nejd\u0159\u00edv kontaktujte svou banku. Dal\u0161\u00ed postup z\u00e1le\u017e\u00ed na v\u010dasnosti va\u0161eho ozn\u00e1men\u00ed a na pravidlech postupu t\u00e9 kter\u00e9 banky.<\/li><li>Aktivujte si dvoufaktorovou autentifikaci v\u0161ude, kde to jde. Nap\u0159\u00edklad ve sv\u00e9m Websupport \u00fa\u010dtu to zvl\u00e1dnete \u00fapln\u011b<a href=\"https:\/\/www.websupport.cz\/podpora\/kb\/dvoufaktorova-autentifikace\/\" target=\"_blank\" rel=\"noreferrer noopener\"> jednodu\u0161e<\/a>.<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>V posledn\u00ed dob\u011b se objevuje st\u00e1le v\u00edce \u00fanik\u016f osobn\u00edch \u00fadaj\u016f p\u0159ev\u00e1\u017en\u011b ze soci\u00e1ln\u00edch s\u00edt\u00ed. Tyto \u00fadaje jsou pak vyu\u017e\u00edv\u00e1ny pro hackersk\u00e9 \u00fatoky. \u010c\u00edm v\u00edc dat \u00fato\u010dn\u00edk o ob\u011bti z\u00edsk\u00e1, t\u00edm v\u011bt\u0161\u00ed je ohro\u017een\u00ed potenci\u00e1ln\u00ed ob\u011bti. Proto je nejvy\u0161\u0161\u00ed \u010das nau\u010dit se efektivn\u011b br\u00e1nit. Soci\u00e1ln\u00ed in\u017een\u00fdrstv\u00ed Jde o manipulaci prost\u0159ednictv\u00edm zneu\u017eit\u00ed lidsk\u00fdch vlastnost\u00ed, jak\u00fdmi jsou t\u0159eba [&hellip;]<\/p>\n","protected":false},"author":52,"featured_media":4711,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[575],"tags":[578,617,815,893],"class_list":["post-4748","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bezpecnost","tag-phishing","tag-podvodna-stranka","tag-podvodne-emaily","tag-social-engineering"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Jak se br\u00e1nit podvodn\u00edk\u016fm na internetu? - Websupport.cz Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.websupport.cz\/blog\/2023\/05\/jak-se-branit-podvodnikum-na-internetu\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak se br\u00e1nit podvodn\u00edk\u016fm na internetu? - Websupport.cz Blog\" \/>\n<meta property=\"og:description\" content=\"V posledn\u00ed dob\u011b se objevuje st\u00e1le v\u00edce \u00fanik\u016f osobn\u00edch \u00fadaj\u016f p\u0159ev\u00e1\u017en\u011b ze soci\u00e1ln\u00edch s\u00edt\u00ed. Tyto \u00fadaje jsou pak vyu\u017e\u00edv\u00e1ny pro hackersk\u00e9 \u00fatoky. \u010c\u00edm v\u00edc dat \u00fato\u010dn\u00edk o ob\u011bti z\u00edsk\u00e1, t\u00edm v\u011bt\u0161\u00ed je ohro\u017een\u00ed potenci\u00e1ln\u00ed ob\u011bti. Proto je nejvy\u0161\u0161\u00ed \u010das nau\u010dit se efektivn\u011b br\u00e1nit. 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