{"id":1221,"date":"2018-12-12T20:07:04","date_gmt":"2018-12-12T18:07:04","guid":{"rendered":"https:\/\/www.zaskolit.cz\/?p=1221"},"modified":"2018-12-12T20:12:16","modified_gmt":"2018-12-12T18:12:16","slug":"studie-odhalila-mozne-utoky-na-bezpecne-messengery","status":"publish","type":"post","link":"https:\/\/www.digitalnisebeobrana.cz\/en\/studie-odhalila-mozne-utoky-na-bezpecne-messengery\/","title":{"rendered":"Studie odhalila mo\u017en\u00e9 \u00fatoky na &#8220;bezpe\u010dn\u00e9&#8221; messengery"},"content":{"rendered":"<p>12. 12. 2018<\/p>\n<p>Vitor Ventura zve\u0159ejnil na <a href=\"https:\/\/blog.talosintelligence.com\/2018\/12\/secureim.html\">blogu<\/a> v\u00fdsledky studie Cisco Talos, kter\u00e1 se zam\u011b\u0159ila na t\u0159i aplikace pro pos\u00edl\u00e1n\u00ed zpr\u00e1v &#8211; Signal, Whatsapp a Telegram.<!--more--><\/p>\n<p>U v\u0161ech t\u0159\u00ed v\u00fdzkumn\u00edci popsali mo\u017en\u00e9 \u00fatoky na desktopov\u00e9 verze (verze pro b\u011b\u017en\u00e9 po\u010d\u00edta\u010de), u Telegramu i na aplikaci v mobiln\u00edm telefonu. U v\u0161ech t\u0159\u00ed se poda\u0159ilo pou\u017e\u00edt kopii session na jin\u00e9m za\u0159\u00edzen\u00ed, \u00fato\u010dn\u00edk tak m\u016f\u017ee \u010d\u00edst jak aktu\u00e1ln\u00ed, tak ulo\u017een\u00e9 zpr\u00e1vy.<\/p>\n<h3>Jak \u00fatok pozn\u00e1te?<\/h3>\n<p>Nejslo\u017eit\u011bj\u0161\u00ed je to u Telegramu &#8211; zjist\u00edte to pouze v nastaven\u00ed, kde si zobraz\u00edte aktivn\u00ed instance:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"shrinkToFit aligncenter\" src=\"https:\/\/2.bp.blogspot.com\/-Y0BuRAXnbGk\/XA6N_KNxdTI\/AAAAAAAAAWM\/OCNX3RYGlJYY2T_TrSwGy8MkFu4OG3zmACK4BGAYYCw\/s1600\/image3.png\" alt=\"https:\/\/2.bp.blogspot.com\/-Y0BuRAXnbGk\/XA6N_KNxdTI\/AAAAAAAAAWM\/OCNX3RYGlJYY2T_TrSwGy8MkFu4OG3zmACK4BGAYYCw\/s1600\/image3.png\" width=\"235\" height=\"327\" \/><\/p>\n<p>Nav\u00edc m\u016f\u017ee b\u00fdt napadena i aplikace v mobiln\u00edm telefonu. Jin\u00e1 (\u0161kodliv\u00e1) aplikace m\u016f\u017ee z\u00edskat p\u0159\u00edstup ke zpr\u00e1v\u00e1m.<\/p>\n<p>U Signalu m\u016f\u017ee b\u00fdt varov\u00e1n\u00edm chybov\u00e1 hl\u00e1\u0161ka, kterou se u\u017eivateli zobraz\u00ed na po\u010d\u00edta\u010di (nikoliv v telefonu). Jak va\u0161e, tak ukraden\u00e1 session toti\u017e &#8220;soupe\u0159\u00ed&#8221; o va\u0161e zpr\u00e1vy. Pokud se chybov\u00e1 hl\u00e1\u0161ka objev\u00ed, zkontrolujte v nastaven\u00ed aplikace v telefonu p\u0159ipojen\u00e1 za\u0159\u00edzen\u00ed. Pokud vid\u00edte jin\u00e9 za\u0159\u00edzen\u00ed, ne\u017e kter\u00e9 zn\u00e1te, je velmi pravd\u011bpodobn\u00e9, \u017ee ste se stali ob\u011bt\u00ed \u00fatoku. I kdy\u017e \u00fato\u010dn\u00edka odpoj\u00edte, mohl si ji\u017e p\u0159e\u010d\u00edst v\u0161echny va\u0161e zpr\u00e1vy a kontakty.<\/p>\n<p>Whatsapp je jedin\u00e1 ze t\u0159\u00ed aplikac\u00ed, kter\u00e1 v\u00e1s upozorn\u00ed na spu\u0161t\u011bn\u00ed desktopov\u00e9 aplikace. Ta je ov\u0161em ji\u017e spu\u0161t\u011bna (do doby, ne\u017e j\u00ed zak\u00e1\u017eete) a \u00fato\u010dn\u00edk se tak op\u011bt mohl dostat k va\u0161im zpr\u00e1v\u00e1m a kontakt\u016fm.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/1.bp.blogspot.com\/-IH7gI_KnwPY\/XA6PFojOaGI\/AAAAAAAAAW4\/6sT5QR22JCkrCxQZMMjUdx2rgHq5LlMfgCK4BGAYYCw\/s400\/image1.png\" width=\"400\" height=\"397\" border=\"0\" \/><\/p>\n<h3>Co s t\u00edm?<\/h3>\n<p>Prvn\u00edm krokem by m\u011blo b\u00fdt odinstalace dot\u010den\u00fdch program\u016f z po\u010d\u00edta\u010de a pou\u017e\u00edv\u00e1n\u00ed pouze aplikac\u00ed v mobiln\u00edm telefonu. Nespol\u00e9hejte se ale na absolutn\u00ed bezpe\u010dnost aplikac\u00ed. I kdy\u017e je <a href=\"https:\/\/signal.org\/\">Signal<\/a> obecn\u011b odborn\u00edky pova\u017eov\u00e1n za aktu\u00e1ln\u011b nejbezpe\u010dn\u011bj\u0161\u00ed zp\u016fsob online komunikace a zpr\u00e1vy nejsou p\u0159i p\u0159enosu rozlu\u0161titeln\u00e9 \u017e\u00e1dnou zn\u00e1mou metodou, mohou b\u00fdt va\u0161e zpr\u00e1vy kompromitov\u00e1ny p\u0159\u00edmo ve va\u0161em za\u0159\u00edzen\u00ed.<br \/>\nNav\u00edc Telegram nen\u00ed odbornou ve\u0159ejnost\u00ed pova\u017eov\u00e1n za bezpe\u010dn\u00fd messenger, nem\u011bli byste ho pou\u017e\u00edvat pro pos\u00edl\u00e1n\u00ed citliv\u011bj\u0161\u00edch informac\u00ed (nap\u0159. soukrom\u00fdch fotografi\u00ed apod.).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>12. 12. 2018 Vitor Ventura zve\u0159ejnil na blogu v\u00fdsledky studie Cisco Talos, kter\u00e1 se zam\u011b\u0159ila na t\u0159i aplikace pro pos\u00edl\u00e1n\u00ed zpr\u00e1v &#8211; Signal, Whatsapp a Telegram.<\/p>\n","protected":false},"author":1,"featured_media":1222,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_vp_format_video_url":"","_vp_image_focal_point":[],"footnotes":""},"categories":[1,13],"tags":[27,39,40,41,16],"class_list":["post-1221","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-news","tag-hackeri","tag-signal","tag-telegram","tag-whatsapp","tag-zranitelnost"],"translation":{"provider":"WPGlobus","version":"3.0.5","language":"en","enabled_languages":["cs","en"],"languages":{"cs":{"title":true,"content":true,"excerpt":false},"en":{"title":false,"content":false,"excerpt":false}}},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Studie odhalila mo\u017en\u00e9 \u00fatoky na &quot;bezpe\u010dn\u00e9&quot; messengery - DIGITAL SELF-DEFENSE<\/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.digitalnisebeobrana.cz\/studie-odhalila-mozne-utoky-na-bezpecne-messengery\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Studie odhalila mo\u017en\u00e9 \u00fatoky na &quot;bezpe\u010dn\u00e9&quot; messengery - DIGITAL SELF-DEFENSE\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.digitalnisebeobrana.cz\/studie-odhalila-mozne-utoky-na-bezpecne-messengery\/\" \/>\n<meta property=\"og:site_name\" content=\"DIGITAL SELF-DEFENSE\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/digitalnisebeobrana\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/digitalnisebeobrana\/\" \/>\n<meta property=\"article:published_time\" content=\"2018-12-12T18:07:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-12-12T18:12:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.digitalnisebeobrana.cz\/wp-content\/uploads\/2018\/12\/messengers.png\" \/>\n\t<meta property=\"og:image:width\" content=\"721\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Milan\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@sodomak\" \/>\n<meta name=\"twitter:site\" content=\"@sodomak\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Milan\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.digitalnisebeobrana.cz\\\/studie-odhalila-mozne-utoky-na-bezpecne-messengery\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.digitalnisebeobrana.cz\\\/studie-odhalila-mozne-utoky-na-bezpecne-messengery\\\/\"},\"author\":{\"name\":\"Milan\",\"@id\":\"https:\\\/\\\/www.digitalnisebeobrana.cz\\\/en\\\/#\\\/schema\\\/person\\\/e932432719ebfc02a9b05e7b12047736\"},\"headline\":\"Studie odhalila mo\u017en\u00e9 \u00fatoky na &#8220;bezpe\u010dn\u00e9&#8221; 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