{"id":31721,"date":"2021-08-27T05:00:00","date_gmt":"2021-08-27T03:00:00","guid":{"rendered":"https:\/\/www.mzone.cz\/?p=31721"},"modified":"2021-05-14T14:52:46","modified_gmt":"2021-05-14T12:52:46","slug":"nesvary-v-online-bezpecnosti","status":"publish","type":"post","link":"https:\/\/www.mzone.cz\/en\/nesvary-v-online-bezpecnosti\/","title":{"rendered":"Chra\u0148te si sv\u00e1 data! \u017deb\u0159\u00ed\u010dek TOP ne\u0161var\u016f v online bezpe\u010dnosti"},"content":{"rendered":"<p><strong>Cht\u011blo by se \u0159\u00edct, \u017ee chybami se \u010dlov\u011bk u\u010d\u00ed a jednou vy\u0159e\u0161en\u00fdmi a m\u00e9dii st\u00e1le om\u00edlan\u00fdmi bezpe\u010dnostn\u00edmi proh\u0159e\u0161ky se spole\u010dnosti zab\u00fdvaj\u00ed. Nen\u00ed tomu ale v\u017edy tak. Je z\u0159ejm\u00e9, \u017ee skute\u010dnost je \u00fapln\u011b jin\u00e1.<\/strong><\/p><br>\n\n\n\n<p>Denn\u011b se setk\u00e1v\u00e1me s bezpe\u010dnostn\u00edmi probl\u00e9my v r\u00e1mci jednotlivc\u016f i v r\u00e1mci firem \u010di organizac\u00ed. N\u00e1rodn\u00edch i t\u011bch nadn\u00e1rodn\u00edch. T\u00e9m\u011b\u0159 denn\u011b se dozv\u00edd\u00e1me o \u00faniku citliv\u00fdch dat, o zneu\u017eit\u00ed soukrom\u00fdch \u010di firemn\u00edch \u00fa\u010dt\u016f.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Nejen\u017ee kv\u016fli insider attack\u016fm, phishingu a kyber\u00fatok\u016fm unikaj\u00ed ji\u017e zm\u00edn\u011bn\u00e1 citliv\u00e1 data klient\u016f, zam\u011bstnanc\u016f a jin\u00fdch u\u017eivatel\u016f, kyber\u00fatoky mohou b\u00fdt tak\u00e9 p\u0159\u00ed\u010dinou zastaven\u00ed provozu nemocnic, pozastaven\u00ed slu\u017eeb bank \u010di nap\u0159\u00edklad zmra\u017een\u00ed pen\u011b\u017en\u00edho konta.&nbsp;<\/p><\/blockquote>\n\n\n\n<p>Jak se ale proti podobn\u00fdm \u00fatok\u016fm br\u00e1nit? \u201eNe m\u00e1lo se do\u010d\u00edt\u00e1me o z\u00e1sadn\u00edch chyb\u00e1ch, kter\u00fdch se dopou\u0161t\u00ed b\u011b\u017en\u00ed u\u017eivatel\u00e9 internetu a \u0159adov\u00ed pracovn\u00edci ve firm\u00e1ch,\u201c \u0159\u00edk\u00e1 \u00favodem Marcel Poul, \u0159editel realizace projekt\u016f spole\u010dnosti <a href=\"https:\/\/www.bcvsolutions.eu\/\" target=\"_blank\" rel=\"noreferrer noopener\">BCV solutions<\/a>. Nam\u00e1tkou jsou nap\u0159\u00edklad v hojn\u00e9m mno\u017estv\u00ed zastoupeny chyby souvisej\u00edc\u00ed se slab\u00fdmi hesly \u010di dokonce s nulovou ochranou dat, d\u00e1le pak zve\u0159ej\u0148ov\u00e1n\u00ed fotografi\u00ed i zad\u00e1v\u00e1n\u00ed dat do neov\u011b\u0159en\u00fdch aplikac\u00ed. Jak u\u017e ale bylo nast\u00edn\u011bno, podobn\u00e9 \u00faniky dat se net\u00fdkaj\u00ed jen jednotlivc\u016f. V dne\u0161n\u00ed dob\u011b se firmy a r\u016fzn\u00e9 organizace mus\u00ed pot\u00fdkat s kyber\u00fatoky i \u00fatoky z vnit\u0159n\u00edho firemn\u00edho prost\u0159ed\u00ed.<\/p><br>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_1210934584-1024x683.jpg\" alt=\"S kyber\u00fatoky se m\u016f\u017eeme setkat v\u0161ichni\" class=\"wp-image-31733\" srcset=\"https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_1210934584-1024x683.jpg 1024w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_1210934584-300x200.jpg 300w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_1210934584-768x512.jpg 768w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_1210934584-1536x1024.jpg 1536w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_1210934584-2048x1365.jpg 2048w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_1210934584-16x12.jpg 16w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_1210934584-800x533.jpg 800w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_1210934584-400x267.jpg 400w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_1210934584-500x333.jpg 500w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_1210934584-1170x780.jpg 1170w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_1210934584-590x393.jpg 590w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><br>\n\n\n\n<h2 class=\"wp-block-heading\">TOP \u010d. 1: Kybernetick\u00fd \u00fatok a vyd\u00edr\u00e1n\u00ed<\/h2>\n\n\n\n<p>Jednou z nejv\u011bt\u0161\u00edch a ob\u00e1van\u00fdch hrozeb je kybernetick\u00fd \u00fatok, b\u011bhem kter\u00e9ho hroz\u00ed \u00fanik vysoce citliv\u00fdch dat ve velk\u00e9m mno\u017estv\u00ed, a to dokonce i p\u0159es vysokou \u00farove\u0148 zabezpe\u010den\u00ed. \u201eZa nej\u010dast\u011bj\u0161\u00ed hrozbu sou\u010dasnosti se pova\u017euje tak\u00e9 vyd\u00edr\u00e1n\u00ed. V takov\u00e9 situaci \u00fato\u010dn\u00edk pronikne do kl\u00ed\u010dov\u00fdch syst\u00e9m\u016f organizace, za\u0161ifruje data tak, aby k nim m\u011bl p\u0159\u00edstup jako jedin\u00fd, p\u0159i\u010dem\u017e jako jedin\u00fd m\u00e1 tak\u00e9 kl\u00ed\u010d k de\u0161ifrov\u00e1n\u00ed,\u201c \u0159\u00edk\u00e1 Marcel Poul.<\/p><br>\n\n\n\n<p>N\u00e1sleduje zasl\u00e1n\u00ed podm\u00ednek, ve kter\u00fdch \u017e\u00e1d\u00e1 v\u00fdkupn\u00e9 (pom\u011brn\u011b \u010dasto to b\u00fdv\u00e1 p\u0159evod ur\u010dit\u00e9 \u010d\u00e1stky v Bitcoinech \u010di jin\u00e9 kryptom\u011bn\u011b \u0161plhaj\u00edc\u00ed se do \u0159\u00e1d\u016f des\u00edtek milion\u016f K\u010d). Organizace pak m\u00edvaj\u00ed na v\u00fdb\u011br \u2013 slo\u017eit \u010d\u00e1stku a doufat v de\u0161ifrov\u00e1n\u00ed dat, nebo za\u010d\u00edt sv\u00e1 data obnovovat ze z\u00e1lohy. V obou p\u0159\u00edpadech v\u0161ak vznikaj\u00ed velk\u00e9 \u0161kody.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Jako jeden z posledn\u00edch medi\u00e1ln\u011b zn\u00e1m\u00fdch p\u0159\u00edpad\u016f kybernetick\u00e9ho \u00fatoku lze uv\u00e9st p\u0159\u00edpad Fakultn\u00ed nemocnice Brno, kter\u00fd se stal v b\u0159eznu roku 2020. Fakultn\u00ed nemocnice kv\u016fli kybernetick\u00e9mu \u00fatoku p\u0159i\u0161la ke \u0161kod\u011b v \u0159\u00e1du des\u00edtek milion\u016f korun. Byla j\u00ed odcizena ekonomick\u00e1 i n\u011bkter\u00e1 administrativn\u00ed data. Dokonce nemocnice p\u0159i\u0161la o internetov\u00fd objedn\u00e1vkov\u00fd syst\u00e9m d\u00e1rc\u016f krve.<\/p><\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\">Jak se ale proti kybernetick\u00e9mu \u00fatoku br\u00e1nit?&nbsp;Zp\u016fsob\u016f je n\u011bkolik:<\/h4>\n\n\n\n<ul><li><strong>Odd\u011blit kritick\u00e9 syst\u00e9my<\/strong>, jako je nap\u0159. transfuzn\u00ed syst\u00e9m v nemocnici, nebo syst\u00e9m pro v\u00fdplatu d\u00e1vek na ministerstvu apod., do odd\u011blen\u00e9 infrastruktury, aby se k nim p\u0159\u00edpadn\u00fd \u00fato\u010dn\u00edk v\u016fbec nedostal.&nbsp;<\/li><li><strong>Aktivn\u011b vyhodnocovat hrozby<\/strong> \u2013 s t\u00edm m\u016f\u017ee pomoci N\u00e1rodn\u00ed \u00fa\u0159ad pro kybernetickou bezpe\u010dnost. M\u00e1 experty, nab\u00edz\u00ed online \u0161kolen\u00ed, vyd\u00e1v\u00e1 doporu\u010den\u00ed.&nbsp;<\/li><li><strong>Dodr\u017eovat pravidla minim\u00e1ln\u00edho p\u0159\u00edstupu<\/strong> \u2013 zjednodu\u0161en\u011b \u2013 v\u0161echny dve\u0159e do s\u00edt\u011b nebo do syst\u00e9mu jsou ve v\u00fdchoz\u00edm stavu zav\u0159en\u00e9, povolen je pouze vybran\u00fd a schv\u00e1len\u00fd p\u0159\u00edstup.&nbsp;<\/li><li><strong>Pou\u017e\u00edvat prvky aktivn\u00ed ochrany infrastruktury<\/strong> \u2013 Intrusion detection system, Intrusion prevension system. Tzn. kdy\u017e u\u017e na organizaci n\u011bkdo \u00fato\u010d\u00ed, rychle se na n\u011bj p\u0159ijde a zne\u0161kodn\u00ed se v z\u00e1rodku.&nbsp;<\/li><li><strong>Pou\u017e\u00edvat kvalitn\u00ed n\u00e1stroje pro monitoring infrastruktury<\/strong>. Plat\u00ed to sam\u00e9, co bylo naps\u00e1no v\u00fd\u0161e. Pokud je provoz podez\u0159el\u00fd nebo se syst\u00e9m chov\u00e1 nestandardn\u011b, v co nejkrat\u0161\u00ed dob\u011b na to lze d\u00edky kvalitn\u00edm n\u00e1stroj\u016fm a monitoringu p\u0159ij\u00edt.&nbsp;<\/li><li>V p\u0159\u00edpad\u011b \u00fatok\u016f na nemocnice \u2013 d\u0159\u00edve neexistovaly pl\u00e1ny, jak se br\u00e1nit kybernetick\u00e9mu \u00fatoku. Chyb\u011bly v\u011bci v podob\u011b seznamu syst\u00e9m\u016f a aplikac\u00ed a jejich stanoven\u00e1 priorita. Je pot\u0159eba v\u011bd\u011bt, co kde funguje, co se m\u00e1 v p\u0159\u00edpad\u011b pot\u0159eby zachra\u0148ovat jako prvn\u00ed a jak\u00fdm zp\u016fsobem.<\/li><li><strong>M\u00edt kvalitn\u00ed z\u00e1lohu dat<\/strong> a hlavn\u011b postup, jak data ze z\u00e1lohy efektivn\u011b a rychle dostat. V tomto bod\u011b m\u011bly nemocnice tak\u00e9 probl\u00e9m. Sice ob\u010das jakousi z\u00e1lohu m\u011bly, ale data, kter\u00e1 byla na z\u00e1loze obsa\u017eena, byla zastaral\u00e1. V dal\u0161\u00edm p\u0159\u00edpad\u011b nemocnice nebyly schopn\u00e9 data ze z\u00e1lohy dostate\u010dn\u011b rychle obnovit, co\u017e pak mnohdy zp\u016fsobovalo omezen\u00ed provozu.&nbsp;<\/li><li><strong>Nechat si pravideln\u011b d\u011blat bezpe\u010dnost\u00ed audit<\/strong> nebo je\u0161t\u011b l\u00e9pe \u2013 nechat si d\u011blat nez\u00e1visl\u00e9 penetra\u010dn\u00ed testy \u2013 v podstat\u011b kyber\u00fatok nane\u010disto.<\/li><\/ul><br>\n\n\n\n<h2 class=\"wp-block-heading\">TOP \u010d. 2: \u00datoky uvnit\u0159 organizace a z\u00e1m\u011brn\u00e1 zcizen\u00ed dat&nbsp;<\/h2>\n\n\n\n<p>\u010casto se zapom\u00edn\u00e1 na \u00fatok uvnit\u0159 organizace tzv. insider attack. \u201ePochopiteln\u011b, firmy se t\u00edm nechlub\u00ed, proto\u017ee insidery jsou \u010dasto zam\u011bstnanci, ale nesm\u00edme zapomenout na zaj\u00edmavou skupinu \u2013 b\u00fdval\u00ed zam\u011bstnanci,\u201c m\u00edn\u00ed Marcel Poul. Nez\u0159\u00eddka se potk\u00e1v\u00e1me s t\u00edm, \u017ee po ukon\u010den\u00ed kontraktu zam\u011bstnance, kter\u00fd se nemus\u00ed n\u00e9st nutn\u011b v dobr\u00e9m duchu, z\u016fstanou odchoz\u00edmu i jeho p\u0159\u00edstupy jako t\u0159eba VPN (vzd\u00e1len\u00fd p\u0159\u00edstup) v\u010detn\u011b dal\u0161\u00edch p\u0159\u00edstup\u016f. A pr\u00e1v\u011b to by mohl b\u00fdt v\u00fdrazn\u00fd probl\u00e9m. Takov\u00fd \u010dlov\u011bk se pro sv\u00e9ho b\u00fdval\u00e9ho zam\u011bstnavatele st\u00e1v\u00e1 nemalou hrozbou. M\u016f\u017ee b\u00fdt ot\u00e1zkou \u010dasu, kdy se v organizaci zjist\u00ed \u00fanik citliv\u00fdch dat.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u201eV takov\u00e9 situaci pak nen\u00ed \u00fapln\u011b t\u011b\u017ek\u00e9 onoho konkr\u00e9tn\u00edho jedince dohledat, ale to nen\u00ed pointa. Pointa je, \u017ee u\u017e mohl nap\u00e1chat \u0161kody, kter\u00e9 u\u017e z n\u011bj nikdy nikdo nedostane. A to nejen p\u0159\u00edm\u00e9 \u0161kody, kdy n\u011bkolik lid\u00ed mus\u00ed po ur\u010ditou dobu \u0159e\u0161it jejich n\u00e1pravu, kter\u00e1 se mnohdy prodlou\u017e\u00ed, proto\u017ee se mus\u00ed pracovat na obnov\u00e1ch a aktualizaci dat. Pokuta v \u0159\u00e1dech milion\u016f m\u016f\u017ee b\u00fdt pro firmu to nejmen\u0161\u00ed. P\u0159edstavte si situaci ohledn\u011b zcizen\u00fdch \u00fadaj\u016f ze zdravotn\u00ed poji\u0161\u0165ovny,\u201c poukazuje odborn\u00edk z BCV solutions.&nbsp;<\/p><\/blockquote>\n\n\n\n<p>Vhodn\u00fdm p\u0159\u00edkladem je zajist\u00e9 situace ze zahrani\u010d\u00ed, a to ze Spojen\u00fdch st\u00e1t\u016f americk\u00fdch, kdy nyn\u00ed ji\u017e b\u00fdval\u00fd zam\u011bstnanec Jason Needham ode\u0161el v roce 2013 ze stroj\u00edrensk\u00e9 firmy Allen &amp; Hoshall se s\u00eddlem ve m\u011bst\u011b Memphis ve st\u00e1tu Tennessee a s\u00e1m zalo\u017eil firmu HNA Engineering. Po ukon\u010den\u00ed pracovn\u00edho pom\u011bru mu v\u0161ak z\u016fstaly ve\u0161ker\u00e9 p\u0159\u00edstupy k citliv\u00fdm dat\u016fm. Needham tak i nad\u00e1le p\u0159istupoval k e-mailov\u00fdm \u00fa\u010dt\u016fm spole\u010dnosti. M\u011bl p\u0159\u00edstup k intern\u00edm soubor\u016fm, kde si st\u00e1hl n\u00e1vrhy projekt\u016f, finan\u010dn\u00ed dokumenty, technick\u00e1 sch\u00e9mata a dal\u0161\u00ed soubory. Ve firm\u011b Allen &amp; Hoshall o jeho chov\u00e1n\u00ed nev\u011bd\u011bli a\u017e do roku 2016, kdy potenci\u00e1ln\u00ed z\u00e1kazn\u00edk obdr\u017eel od nov\u011b vznikl\u00e9 firmy n\u00e1vrh, kter\u00fd byl v\u00fdrazn\u00fdm zp\u016fsobem podobn\u00fd tomu z firmy Allen &amp; Hoshall. Ta kontaktovala FBI a v roce 2017 byl Jason Needham obvin\u011bn z trestn\u00e9ho \u010dinu.<\/p><br>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"583\" src=\"https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_680075278-1024x583.jpg\" alt=\"IT kriminalita se n\u011bkdy nevypl\u00e1c\u00ed\" class=\"wp-image-31742\" srcset=\"https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_680075278-1024x583.jpg 1024w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_680075278-300x171.jpg 300w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_680075278-768x438.jpg 768w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_680075278-1536x875.jpg 1536w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_680075278-2048x1167.jpg 2048w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_680075278-16x9.jpg 16w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_680075278-590x336.jpg 590w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><br>\n\n\n\n<p>Dal\u0161\u00ed insider attack m\u016f\u017ee nastat ve chv\u00edli, kdy sou\u010dasn\u00fd zam\u011bstnanec c\u00edlen\u011b zciz\u00ed data. Ty pak m\u016f\u017ee prod\u00e1vat konkurenci (nap\u0159\u00edklad v p\u0159\u00edpad\u011b technick\u00fdch n\u00e1vrh\u016f), d\u00e1le je pak m\u016f\u017ee pou\u017e\u00edvat pro nastartov\u00e1n\u00ed vlastn\u00edho byznysu (dostane se ke kontakt\u016fm) apod. \u010c\u00e1ste\u010dn\u011b tomu m\u016f\u017ee zamezit IdM (Identity Management) \u2013 kdy m\u00e1 zam\u011bstnanec p\u0159\u00edstup ke spr\u00e1vn\u00fdm (rozum\u011bjte schv\u00e1len\u00fdm) dat\u016fm ve spr\u00e1vn\u00fd \u010das a na konkr\u00e9tn\u00edm m\u00edst\u011b. Dal\u0161\u00edm \u0159e\u0161en\u00edm by mohl b\u00fdt kvalitn\u00ed log management, monitoring, DLP (Data Loss Prevention \u2013 syst\u00e9my na ochranu dat), a zejm\u00e9na dobr\u00fd n\u00e1vrh samotn\u00e9 aplikace. D\u00e1le pak \u0159\u00edzen\u00ed p\u0159\u00edstup\u016f pomoc\u00ed rol\u00ed a r\u016fzn\u00e9 trasholdy (prahov\u00e9 hodnoty) pro &#8220;podez\u0159el\u00e9&#8221; operace v syst\u00e9mu \u2013 nap\u0159\u00edklad kdy\u017e si n\u011bkdo exportuje mnoho dat ze CRM.&nbsp;<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u201eJako dal\u0161\u00ed p\u0159\u00edklad lze uv\u00e9st americk\u00e1 spole\u010dnost Tesla, kter\u00e1 se kv\u016fli m\u00e1lo d\u016fsledn\u00e9mu omezen\u00ed \u00farovn\u011b privilegovan\u00fdch p\u0159\u00edstup\u016f sv\u00fdch zam\u011bstnanc\u016f musela pot\u00fdkat se sabot\u00e9rem. Ten vyu\u017eil sv\u00e9ho p\u0159\u00edstupu k proveden\u00ed zm\u011bn k\u00f3du v opera\u010dn\u00edm syst\u00e9mu Tesla Manufacturing pod fale\u0161n\u00fdmi u\u017eivatelsk\u00fdmi jm\u00e9ny a zp\u016fsobil tak \u00fanik velk\u00e9ho mno\u017estv\u00ed vysoce citliv\u00fdch dat t\u0159et\u00edm stran\u00e1m,&#8221; popisuje Marcel Poul.<\/p><\/blockquote>\n\n\n\n<p>\u201eNa podobnou situaci upozor\u0148ovala i agentura Reuters, kdy se americk\u00e9 bankovn\u00ed spole\u010dnosti SunTrust Bank pokusil nyn\u00ed ji\u017e b\u00fdval\u00fd zam\u011bstnanec st\u00e1hnout \u00fadaje o klientech s \u00famyslem je poskytnou t\u0159et\u00ed stran\u011b,\u201c dod\u00e1v\u00e1 Poul.<\/p><br>\n\n\n\n<h2 class=\"wp-block-heading\">TOP \u010d. 3: Neaktu\u00e1ln\u00ed software<\/h2>\n\n\n\n<p>Pat\u0159\u00edte mezi zast\u00e1nce oddalov\u00e1n\u00ed aktualizac\u00ed \u2013 a\u0165 u\u017e z d\u016fvodu \u201enedostatku \u010dasu\u201c \u010di nejste zast\u00e1nci \u201epokroku\u201c a sou\u010dasn\u00e1 verze v\u00e1m dostate\u010dn\u011b vyhovuje? Mysleli jste si, \u017ee neaktu\u00e1ln\u00ed software nen\u00ed nebezpe\u010dn\u00fd? Opak je pravdou!<\/p><br>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"657\" src=\"https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_359177468-1024x657.jpg\" alt=\"Aktualizace nepodce\u0148ujte!\" class=\"wp-image-31752\" srcset=\"https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_359177468-1024x657.jpg 1024w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_359177468-300x192.jpg 300w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_359177468-768x493.jpg 768w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_359177468-1536x985.jpg 1536w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_359177468-2048x1314.jpg 2048w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_359177468-16x10.jpg 16w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/shutterstock_359177468-590x379.jpg 590w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><br>\n\n\n\n<p>Hacke\u0159i \u010dasto vyhled\u00e1vaj\u00ed a vyu\u017e\u00edvaj\u00ed pr\u00e1v\u011b zastaral\u00fdch a neaktualizovan\u00fdch softwar\u016f, u kter\u00fdch si jsou v\u011bdomi chyb a nedostatk\u016f. \u201ePr\u00e1v\u011b ty jim pak zna\u010dn\u00fdm zp\u016fsobem usnad\u0148uj\u00ed p\u0159\u00edstup k va\u0161im citliv\u00fdm \u00fadaj\u016fm, se kter\u00fdmi pak mohou nakl\u00e1dat dle sv\u00e9 libosti,\u201c upozor\u0148uje Marcel Poul.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>V dne\u0161n\u00ed dob\u011b existuje mnoho program\u016f, kter\u00e9 onu konkr\u00e9tn\u00ed zranitelnost vyu\u017eij\u00ed k ovl\u00e1dnut\u00ed syst\u00e9mu \u2013 \u00fato\u010dn\u00edk tak ne\u010din\u00ed manu\u00e1ln\u011b, n\u00fdbr\u017e to za n\u011bj d\u011blaj\u00ed specializovan\u00e9 n\u00e1stroje.&nbsp;<\/p><\/blockquote>\n\n\n\n<p>Je d\u016fle\u017eit\u00e9 m\u00edt na mysli, \u017ee aktualizace softwaru je v\u017edy zkr\u00e1tka nutn\u00e1. S aktualizacemi p\u0159ich\u00e1z\u00ed bezpe\u010dnostn\u00ed opravy, kter\u00e9 znemo\u017e\u0148uj\u00ed p\u0159\u00edstup \u00fato\u010dn\u00edk\u016fm. S aktualizacemi doch\u00e1z\u00ed k vylep\u0161en\u00edm sou\u010dasn\u00fdch softwar\u016f, vylep\u0161uje se jak jejich fungov\u00e1n\u00ed, tak i jejich zabezpe\u010den\u00ed. Mo\u017en\u00e1 byste se dnes divili, kde v\u0161ude je\u0161t\u011b b\u011b\u017e\u00ed Windows XP.<\/p><br>\n\n\n\n<h2 class=\"wp-block-heading\">TOP \u010d. 4: Phishing<\/h2>\n\n\n\n<p>Pochopiteln\u011b nejv\u011bt\u0161\u00ed probl\u00e9my s bezpe\u010dnost\u00ed jsou 1000x om\u00edlan\u00e9 phishing \u00fatoky a hackersk\u00e9 \u00fatoky. Phishingov\u00fd \u00fatok m\u00e1 v\u00edcem\u00e9n\u011b jedin\u00fd c\u00edl, a to od v\u00e1s z\u00edskat citliv\u00e1 data, jako jsou kup\u0159\u00edkladu p\u0159\u00edstupov\u00e1 hesla k \u00fa\u010dt\u016fm. P\u0159i\u010dem\u017e je nutno podotknout, \u017ee za takov\u00fdm \u00fatokem obvykle stoj\u00ed \u010dlov\u011bk vyd\u00e1vaj\u00edc\u00ed se za n\u011bkoho d\u016fv\u011bryhodn\u00e9ho. Z\u00edskan\u00e9 \u00fadaje pak m\u016f\u017ee \u00fato\u010dn\u00edk pou\u017e\u00edt nap\u0159\u00edmo \u2013 vykrade bankovn\u00ed \u00fa\u010det \u2013 ale \u010d\u00edm d\u00e1l \u010dast\u011bji slou\u017e\u00ed tyto ukraden\u00e9 p\u0159\u00edstupov\u00e9 \u00fadaje jako vstupn\u00ed br\u00e1na k dal\u0161\u00edm \u00fatok\u016fm. Napaden\u00fd se VPN p\u0159ipoj\u00ed do firemn\u00ed s\u00edt\u011b a dv\u00ed\u0159ka ke kybernetick\u00e9mu \u00fatoku na organizaci jsou otev\u0159en\u00e1.<\/p><br>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/05\/Kyberzlocin-1024x683.jpg\" alt=\"Hacke\u0159i se neust\u00e1le zlep\u0161uj\u00ed\" class=\"wp-image-29950\" srcset=\"https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/05\/Kyberzlocin-1024x683.jpg 1024w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/05\/Kyberzlocin-300x200.jpg 300w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/05\/Kyberzlocin-768x512.jpg 768w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/05\/Kyberzlocin-1536x1024.jpg 1536w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/05\/Kyberzlocin-16x12.jpg 16w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/05\/Kyberzlocin-800x533.jpg 800w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/05\/Kyberzlocin-400x267.jpg 400w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/05\/Kyberzlocin-500x333.jpg 500w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/05\/Kyberzlocin-1170x780.jpg 1170w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/05\/Kyberzlocin-590x393.jpg 590w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/05\/Kyberzlocin.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><br>\n\n\n\n<p>Pravd\u011bpodobn\u011b jste ji\u017e zaznamenali r\u016fzn\u00e1 varov\u00e1n\u00ed v podob\u011b neotev\u00edr\u00e1n\u00ed podez\u0159el\u00fdch e-mail\u016f, kter\u00e9 na prvn\u00ed pohled vypadaj\u00ed jako v\u00e1mi vy\u017e\u00e1dan\u00e1 po\u0161ta. P\u0159i druh\u00e9m pohledu, nap\u0159\u00edklad na mnohdy zvl\u00e1\u0161tn\u00ed e-mailovou, gramatick\u00e9 chyby \u010di na pob\u00eddku o vlo\u017een\u00ed e-mailov\u00e9 adresy i hesla k internetov\u00e9mu bankovnictv\u00ed, je jasn\u00e9, \u017ee doty\u010dn\u00fd jedinec \u010del\u00ed phishingov\u00e9mu \u00fatoku.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Op\u011bt nutno podotknout, \u017ee se v posledn\u00ed dob\u011b kvalita t\u011bchto podvr\u017een\u00fdch webov\u00fdch str\u00e1nek a podvr\u017een\u00fdch e-mail\u016f razantn\u00edm zp\u016fsobem zlep\u0161ila. To je mo\u017en\u00e9 p\u0159i\u010d\u00edtat i neust\u00e1le se zkvalit\u0148uj\u00edc\u00edm se automatick\u00fdm p\u0159eklada\u010d\u016fm.&nbsp;<\/p><\/blockquote>\n\n\n\n<p>Jak se ale takov\u00fdm \u00fatok\u016fm br\u00e1nit? \u201eLze phishing odstranit? Ano a ne. Phishing bohu\u017eel zcela odstranit nelze, ale lze se proti n\u011bmu pomoc\u00ed n\u011bkolika krok\u016f br\u00e1nit. V prv\u00e9 \u0159ad\u011b by v\u0161ichni u\u017eivatel\u00e9 m\u011bli db\u00e1t na to, komu a kam zad\u00e1vaj\u00ed sv\u00e9 informace. Kontrolovat adresu, odkud nov\u011b p\u0159\u00edchoz\u00ed email p\u0159i\u0161el, nesta\u010d\u00ed. V dne\u0161n\u00ed dob\u011b lze e-mailovou adresu lehce podvrhnout,\u201c prozrazuje Marcel Poul, \u0159editel realizace projekt\u016f spole\u010dnosti BCV solutions. V dal\u0161\u00ed \u0159ad\u011b je d\u016fle\u017eit\u00e9 tak\u00e9 zv\u00e1\u017eit, zda je nutn\u00e9, a hlavn\u011b bezpe\u010dn\u00e9 klikat na konkr\u00e9tn\u00ed odkaz na webu \u010di v e-mailu. V tomto bod\u011b by se u\u017eivatel\u00e9 m\u011bli soust\u0159edit na kterou adresu vedou odkazy a v \u017e\u00e1dn\u00e9m p\u0159\u00edpad\u011b a za \u017e\u00e1dn\u00fdch okolnost\u00ed by na str\u00e1nky z odkaz\u016f nem\u011bli zad\u00e1vat sv\u00e9 p\u0159ihla\u0161ovac\u00ed \u00fadaje. V neposledn\u00ed \u0159ad\u011b je pot\u0159ebn\u00e9 db\u00e1t na dostate\u010dn\u00e9 zabezpe\u010den\u00ed \u2013 a\u0165 u\u017e pomoc\u00ed antivirov\u00e9ho programu nebo pomoc\u00ed v\u00edcefaktorov\u00e9ho ov\u011b\u0159en\u00ed.<\/p><br>\n\n\n\n<h2 class=\"wp-block-heading\">TOP \u010d. 5: Zabezpe\u010den\u00ed dlouh\u00fdm heslem nesta\u010d\u00ed<\/h2>\n\n\n\n<p>Hesla n\u00e1m nejen\u017ee pom\u00e1haj\u00ed, ale vylo\u017een\u011b chr\u00e1n\u00ed na\u0161e soukrom\u00ed, citliv\u00e1 data, fotografie a mnoho dal\u0161\u00edho. V p\u0159\u00edpad\u011b slab\u00e9ho hesla je, bohu\u017eel, jen ot\u00e1zkou \u010dasu, kdy n\u00e1m bude naru\u0161eno na\u0161e soukrom\u00ed.<\/p><br>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"662\" src=\"https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/Silne-heslo-1024x662.jpg\" alt=\"Siln\u00e9 heslo je z\u00e1klad\" class=\"wp-image-31760\" srcset=\"https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/Silne-heslo-1024x662.jpg 1024w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/Silne-heslo-300x194.jpg 300w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/Silne-heslo-768x497.jpg 768w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/Silne-heslo-1536x994.jpg 1536w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/Silne-heslo-2048x1325.jpg 2048w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/Silne-heslo-16x10.jpg 16w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2021\/04\/Silne-heslo-590x382.jpg 590w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><br>\n\n\n\n<p>V p\u0159\u00edpad\u011b vym\u00fd\u0161len\u00ed siln\u00e9ho hesla je d\u016fle\u017eit\u00e9 m\u00edt na pam\u011bti originalitu, d\u00e9lku a znaky. \u201eCo se t\u00fd\u010de originality \u2013 zad\u00e1n\u00edm na\u0161eho rodn\u00e9ho \u010d\u00edsla, jm\u00e9na \u010di jm\u00e9na d\u011bt\u00ed anebo dokonce toho, co m\u00e1me r\u00e1di, nikoho neobelst\u00edme. Heslo by nem\u011blo b\u00fdt kr\u00e1tk\u00e9 a z\u00e1rove\u0148 by v n\u011bm m\u011bly b\u00fdt vyu\u017eit\u00e9 speci\u00e1ln\u00ed znaky. Tady ov\u0161em pozor \u2013 dnes se ji\u017e stalo denn\u00edm po\u0159\u00e1dkem, \u017ee n\u011bkter\u00e9 znaky nahrazuj\u00ed p\u00edsmena, proto bychom je m\u011bli vyu\u017e\u00edvat origin\u00e1ln\u011b,\u201c \u0159\u00edk\u00e1 odborn\u00edk z BCV solutions.&nbsp;<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>V t\u00e9to chv\u00edli se v\u0161ak dost\u00e1v\u00e1me do bodu, kdy ani takto vymy\u0161len\u00e9 heslo nemus\u00ed b\u00fdt dostate\u010dn\u00e9. Proto je vhodn\u00e9 vyu\u017e\u00edvat v\u00edcefaktorov\u00e9 ov\u011b\u0159en\u00ed nap\u0159\u00edklad v podob\u011b aplikace v telefonu (dnes hojn\u011b vyu\u017e\u00edvan\u00e9 bankami) nebo v\u00edcefaktorov\u00e9 ov\u011b\u0159en\u00ed v podob\u011b biometriky \u2013 otisku prstu \u010di scanu obli\u010deje, jako m\u00e1 Apple sv\u00e9 faceID.\u00a0<\/p><\/blockquote>\n\n\n\n<p>V p\u0159\u00edpad\u011b v\u00edcefaktorov\u00e9ho ov\u011b\u0159en\u00ed n\u00e1m po zad\u00e1n\u00ed hesla p\u0159ijde obvykle na telefonn\u00ed \u010d\u00edslo unik\u00e1tn\u00ed k\u00f3d, po jeho\u017e zad\u00e1n\u00ed budeme ke sv\u00e9mu \u00fa\u010dtu p\u0159ihl\u00e1\u0161eni. Pr\u00e1v\u011b v\u00edcefaktorov\u00e9 ov\u011b\u0159en\u00ed v\u00fdrazn\u00fdm zp\u016fsobem p\u0159isp\u00edv\u00e1 k vysok\u00e9 online bezpe\u010dnosti.<\/p><br>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile is-vertically-aligned-top\" style=\"grid-template-columns:29% auto\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/www.mzone.cz\/kyberneticke-utoky-hackeri-vymysleji-nove-techniky\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.mzone.cz\/wp-content\/uploads\/2020\/10\/Hacker-kyberneticke-utoky-1024x683.jpg\" alt=\"\" class=\"wp-image-24264 size-full\" srcset=\"https:\/\/www.mzone.cz\/wp-content\/uploads\/2020\/10\/Hacker-kyberneticke-utoky-1024x683.jpg 1024w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2020\/10\/Hacker-kyberneticke-utoky-300x200.jpg 300w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2020\/10\/Hacker-kyberneticke-utoky-768x512.jpg 768w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2020\/10\/Hacker-kyberneticke-utoky-1536x1024.jpg 1536w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2020\/10\/Hacker-kyberneticke-utoky-800x533.jpg 800w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2020\/10\/Hacker-kyberneticke-utoky-400x267.jpg 400w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2020\/10\/Hacker-kyberneticke-utoky-500x333.jpg 500w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2020\/10\/Hacker-kyberneticke-utoky-1170x780.jpg 1170w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2020\/10\/Hacker-kyberneticke-utoky-590x393.jpg 590w, https:\/\/www.mzone.cz\/wp-content\/uploads\/2020\/10\/Hacker-kyberneticke-utoky.jpg 1726w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<h4><a href=\"https:\/\/www.mzone.cz\/kyberneticke-utoky-hackeri-vymysleji-nove-techniky\/\">Kybernetick\u00fdch \u00fatok\u016f p\u0159ib\u00fdv\u00e1! Hacke\u0159i vym\u00fd\u0161lej\u00ed st\u00e1le nov\u00e9 techniky<\/a><\/h4><br>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Cht\u011blo by se \u0159\u00edct, \u017ee chybami se \u010dlov\u011bk u\u010d\u00ed a jednou vy\u0159e\u0161en\u00fdmi a m\u00e9dii st\u00e1le om\u00edlan\u00fdmi bezpe\u010dnostn\u00edmi proh\u0159e\u0161ky se spole\u010dnosti zab\u00fdvaj\u00ed. Nen\u00ed tomu ale v\u017edy tak. Je z\u0159ejm\u00e9, \u017ee skute\u010dnost je \u00fapln\u011b jin\u00e1. Denn\u011b se setk\u00e1v\u00e1me s bezpe\u010dnostn\u00edmi probl\u00e9my v r\u00e1mci jednotlivc\u016f i v r\u00e1mci firem \u010di organizac\u00ed. N\u00e1rodn\u00edch i t\u011bch nadn\u00e1rodn\u00edch. T\u00e9m\u011b\u0159 denn\u011b se [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":31730,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"kk_blocks_editor_width":"","_kiokenblocks_attr":"","_kiokenblocks_dimensions":"","footnotes":""},"categories":[65],"tags":[758,2117,4974,4585,4973,800,287,141,482,434,19,4166],"class_list":["post-31721","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technika","tag-bezpecnost","tag-it","tag-nesvary","tag-ochrana-dat","tag-online-bezpecnost","tag-pocitace","tag-prevence","tag-rady","tag-rady-a-tipy","tag-technika","tag-technologie","tag-zabezpeceni"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Chra\u0148te si sv\u00e1 data! \u017deb\u0159\u00ed\u010dek TOP ne\u0161var\u016f v online bezpe\u010dnosti - Mzone<\/title>\n<meta name=\"description\" content=\"Cht\u011blo by se \u0159\u00edct, \u017ee chybami se \u010dlov\u011bk u\u010d\u00ed a jednou vy\u0159e\u0161en\u00fdmi a m\u00e9dii om\u00edlan\u00fdmi bezpe\u010dnostn\u00edmi proh\u0159e\u0161ky se spole\u010dnosti zab\u00fdvaj\u00ed. Nen\u00ed tomu ale v\u017edy tak. Je z\u0159ejm\u00e9, \u017ee skute\u010dnost je \u00fapln\u011b jin\u00e1.\" \/>\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.mzone.cz\/en\/nesvary-v-online-bezpecnosti\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chra\u0148te si sv\u00e1 data! \u017deb\u0159\u00ed\u010dek TOP ne\u0161var\u016f v online bezpe\u010dnosti - Mzone\" \/>\n<meta property=\"og:description\" content=\"Cht\u011blo by se \u0159\u00edct, \u017ee chybami se \u010dlov\u011bk u\u010d\u00ed a jednou vy\u0159e\u0161en\u00fdmi a m\u00e9dii om\u00edlan\u00fdmi bezpe\u010dnostn\u00edmi proh\u0159e\u0161ky se spole\u010dnosti zab\u00fdvaj\u00ed. Nen\u00ed tomu ale v\u017edy tak. 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