{"id":33411,"date":"2019-10-31T21:52:25","date_gmt":"2019-10-31T18:52:25","guid":{"rendered":"https:\/\/prohoster.info\/blog\/esli-uzhe-stuchat-v-dver-kak-zashhitit-informatsiyu-na-ustrojstvah\/"},"modified":"2019-10-31T21:52:25","modified_gmt":"2019-10-31T18:52:25","slug":"esli-uzhe-stuchat-v-dver-kak-zashhitit-informatsiyu-na-ustrojstvah","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/administrirovanie\/esli-uzhe-stuchat-v-dver-kak-zashhitit-informatsiyu-na-ustrojstvah","title":{"rendered":"Kdy\u017e u\u017e n\u011bkdo klepe na dve\u0159e: jak chr\u00e1nit informace na za\u0159\u00edzen\u00edch","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

N\u011bkolik p\u0159edchoz\u00edch \u010dl\u00e1nk\u016f v na\u0161em blogu se v\u011bnovalo ot\u00e1zk\u00e1m bezpe\u010dnosti osobn\u00edch \u00fadaj\u016f, kter\u00e9 jsou p\u0159en\u00e1\u0161eny prost\u0159ednictv\u00edm messenger\u016f a soci\u00e1ln\u00edch s\u00edt\u00ed. Nyn\u00ed nastal \u010das hovo\u0159it o opat\u0159en\u00edch, kter\u00e1 se t\u00fdkaj\u00ed fyzick\u00e9ho p\u0159\u00edstupu k za\u0159\u00edzen\u00ed.<\/p>\n

\r\n \"P\u0159ehr\u00e1t\r\n
<\/div>\r\n <\/div><\/center> <\/a><\/noindex><\/p>\n

Jak rychle zni\u010dit informace na flash disku, HDD nebo SSD<\/h3>\n

\nInformaci je \u010dasto nejjednodu\u0161\u0161\u00ed zni\u010dit, kdy\u017e je nabl\u00edzku. Mluv\u00edme o likvidaci dat z \u00falo\u017ei\u0161\u0165 \u2014 USB flash disk\u016f, SSD, HDD. M\u016f\u017eete zni\u010dit \u00falo\u017ei\u0161t\u011b ve speci\u00e1ln\u00edm drti\u010di nebo jednodu\u0161e n\u011b\u010d\u00edm t\u011b\u017ek\u00fdm, ale my v\u00e1m pov\u00edme o elegantn\u011bj\u0161\u00edch \u0159e\u0161en\u00edch.<\/p>\n

R\u016fzn\u00e9 spole\u010dnosti vyr\u00e1b\u011bj\u00ed nosi\u010de informac\u00ed, kter\u00e9 maj\u00ed funkci sebedestrukce p\u0159\u00edmo z krabice. Existuje obrovsk\u00e9 mno\u017estv\u00ed \u0159e\u0161en\u00ed.<\/p>\n

Jedn\u00edm z nejjednodu\u0161\u0161\u00edch a nejviditeln\u011bj\u0161\u00edch p\u0159\u00edklad\u016f je USB flash disk Data Killer a podobn\u00e9. Takov\u00e9 za\u0159\u00edzen\u00ed se navenek neli\u0161\u00ed od jin\u00fdch flash disk\u016f, ale uvnit\u0159 m\u00e1 baterii. Po stisknut\u00ed tla\u010d\u00edtka baterie zni\u010d\u00ed data na \u010dipu siln\u00fdm zah\u0159\u00e1t\u00edm. Pot\u00e9 ji\u017e flash disk nen\u00ed rozpozn\u00e1n p\u0159i p\u0159ipojen\u00ed, tak\u017ee se zni\u010d\u00ed i samotn\u00fd \u010dip. Bohu\u017eel podrobn\u00e9 studie o tom, zda je mo\u017en\u00e9 jej obnovit, nebyly provedeny.<\/p>\n

\"Kdy\u017e
\nZdroj obr\u00e1zku: hacker.ru<\/a><\/noindex><\/p>\n

Existuj\u00ed flash disky, kter\u00e9 neukl\u00e1daj\u00ed \u017e\u00e1dn\u00e9 informace, ale mohou zni\u010dit po\u010d\u00edta\u010d nebo notebook. Pokud tuto \"flash disk\" polo\u017e\u00edte vedle sv\u00e9ho notebooku a n\u011bjak\u00fd major se rozhodne rychle zkontrolovat, co na n\u00ed je naps\u00e1no, zni\u010d\u00ed to jak sebe, tak notebook. Tady je jeden z p\u0159\u00edklad\u016f takov\u00e9ho killeru<\/a><\/noindex>.<\/p>\n

Pro spolehlivou likvidaci informac\u00ed ulo\u017een\u00fdch na pevn\u00e9m disku, kter\u00fd je uvnit\u0159 PC, existuj\u00ed zaj\u00edmav\u00e9 syst\u00e9my.<\/p>\n

\"Kdy\u017e
\n
\nTy byly d\u0159\u00edve popisov\u00e1ny na Habr.<\/a><\/noindex>, ale nen\u00ed mo\u017en\u00e9 o nich ml\u010det. Takov\u00e9 syst\u00e9my maj\u00ed autonomn\u00ed nap\u00e1jen\u00ed (to znamen\u00e1, \u017ee vypnut\u00ed elekt\u0159iny v budov\u011b nepom\u016f\u017ee zastavit likvidaci dat). Existuje tak\u00e9 \u010dasova\u010d na vypnut\u00ed elekt\u0159iny, kter\u00fd pom\u016f\u017ee, pokud je po\u010d\u00edta\u010d zabaven v nep\u0159\u00edtomnosti u\u017eivatele. Dokonce jsou dostupn\u00e9 r\u00e1diov\u00e9 a GSM kan\u00e1ly, tak\u017ee likvidaci informac\u00ed lze spustit na d\u00e1lku. Informace se likviduj\u00ed generov\u00e1n\u00edm magnetick\u00e9ho pole 450 kA\/m za\u0159\u00edzen\u00edm.<\/p>\n

S SSD to takto nefunguje, a pro n\u011b byl kdysi navr\u017een variant termick\u00e9 likvidace<\/a><\/noindex>.<\/p>\n

\"Kdy\u017e
\n
\n

\r\n \"P\u0159ehr\u00e1t\r\n
<\/div>\r\n <\/div><\/center>
\nV\u00fd\u0161e uveden\u00e1 metoda je amat\u00e9rsk\u00e1, nespolehliv\u00e1 a nebezpe\u010dn\u00e1. Pro SSD se pou\u017e\u00edvaj\u00ed za\u0159\u00edzen\u00ed jin\u00e9ho typu, nap\u0159\u00edklad Impuls-SSD, kter\u00e9 zni\u010d\u00ed disk nap\u011bt\u00edm 20 000 V.<\/p>\n

\r\n \"P\u0159ehr\u00e1t\r\n
<\/div>\r\n <\/div><\/center>
\nInformace se vyma\u017eou, \u010dipy se po\u0161kod\u00ed a disk se dostane do \u00fapln\u00e9 nepou\u017eitelnosti. Existuj\u00ed tak\u00e9 mo\u017enosti s d\u00e1lkov\u00fdm zni\u010den\u00edm (pomoc\u00ed GSM).<\/p>\n

Prod\u00e1vaj\u00ed se tak\u00e9 mechanick\u00e9 ni\u010di\u010de HDD. Nap\u0159\u00edklad takov\u00e9 za\u0159\u00edzen\u00ed vyr\u00e1b\u00ed LG - CrushBox.<\/p>\n

\"Kdy\u017e
\n
\nExistuje mnoho variant gadget\u016f pro ni\u010den\u00ed HDD a SSD: jsou k dispozici jak v RF, tak v zahrani\u010d\u00ed. Doporu\u010dujeme o t\u011bchto za\u0159\u00edzen\u00edch diskutovat v koment\u00e1\u0159\u00edch - pravd\u011bpodobn\u011b mnoho \u010dten\u00e1\u0159\u016f m\u016f\u017ee uv\u00e9st sv\u00e9 vlastn\u00ed p\u0159\u00edklady.<\/p>\n

Jak chr\u00e1nit sv\u016fj po\u010d\u00edta\u010d nebo notebook<\/h3>\n

\nPodobn\u011b jako u HDD a SSD existuje mnoho druh\u016f ochrann\u00fdch syst\u00e9m\u016f pro notebooky. Jedn\u00edm z nejspolehliv\u011bj\u0161\u00edch je \u0161ifrov\u00e1n\u00ed v\u0161eho a v\u0161ch, a to tak, aby po n\u011bkolika pokusech o p\u0159\u00edstup k informac\u00edm byly data zni\u010dena.<\/p>\n

Jedn\u00edm z nejzn\u00e1m\u011bj\u0161\u00edch syst\u00e9m\u016f ochrany PC a notebook\u016f je technologie spole\u010dnosti Intel zvan\u00e1 Anti-Theft. Podpora t\u00e9to technologie byla v\u0161ak p\u0159ed n\u011bkolika lety zastavena, tak\u017ee toto \u0159e\u0161en\u00ed nelze nazvat nov\u00fdm, ale jako p\u0159\u00edklad ochrany je vhodn\u00e9. Anti-Theft umo\u017e\u0148ovala naj\u00edt ukraden\u00fd nebo ztracen\u00fd notebook a zablokovat ho. Na str\u00e1nk\u00e1ch Intelu se uv\u00e1d\u011blo, \u017ee syst\u00e9m chr\u00e1n\u00ed citliv\u00e9 informace, blokuje p\u0159\u00edstup k za\u0161ifrovan\u00fdm dat\u016fm a br\u00e1n\u00ed spu\u0161t\u011bn\u00ed oper\u010dn\u00edho syst\u00e9mu v p\u0159\u00edpad\u011b neopr\u00e1vn\u011bn\u00e9ho pokusu o zapnut\u00ed za\u0159\u00edzen\u00ed.<\/p>\n

\"Kdy\u017e
\n
\nTento a podobn\u00e9 syst\u00e9my kontroluj\u00ed notebook na p\u0159\u00edtomnost takov\u00fdch p\u0159\u00edznak\u016f ciz\u00edho z\u00e1sahu, jako jsou p\u0159\u00edli\u0161 velk\u00e9 pokusy o p\u0159ihl\u00e1\u0161en\u00ed, selh\u00e1n\u00ed p\u0159i pokusu o p\u0159ihl\u00e1\u0161en\u00ed na d\u0159\u00edve ur\u010den\u00fd server, blokov\u00e1n\u00ed notebooku p\u0159es internet.<\/p>\n

Anti-Theft blokuje p\u0159\u00edstup k sad\u011b \u010dip\u016f syst\u00e9mov\u00e9 logiky Intel, co\u017e znemo\u017e\u0148uje p\u0159\u00edstup k slu\u017eb\u00e1m notebooku, spu\u0161t\u011bn\u00ed softwaru nebo opern\u00edho syst\u00e9mu i v p\u0159\u00edpad\u011b v\u00fdm\u011bny \u010di p\u0159eform\u00e1tov\u00e1n\u00ed HDD nebo SDD. Tak\u00e9 se odstran\u00ed hlavn\u00ed kryptografick\u00e9 soubory pot\u0159ebn\u00e9 pro p\u0159\u00edstup k dat\u016fm.<\/p>\n

Pokud je notebook vr\u00e1cen majiteli, m\u016f\u017ee rychle obnovit jeho funk\u010dnost.<\/p>\n

Existuje varianta vyu\u017eit\u00ed smart karet nebo hardwarov\u00fdch token\u016f \u2013 v tomto p\u0159\u00edpad\u011b nen\u00ed mo\u017en\u00e9 p\u0159ihl\u00e1sit se do syst\u00e9mu bez t\u011bchto za\u0159\u00edzen\u00ed. V na\u0161em p\u0159\u00edpad\u011b (pokud u\u017e n\u011bkdo klepe na dve\u0159e) je nutn\u00e9 tak\u00e9 nastavit PIN, aby p\u0159i p\u0159ipojen\u00ed kl\u00ed\u010de PC po\u017eadoval dal\u0161\u00ed heslo. Dokud nen\u00ed blok\u00e1tor tohoto typu p\u0159ipojen k syst\u00e9mu, je t\u00e9m\u011b\u0159 nemo\u017en\u00e9 ho spustit.<\/p>\n

Funk\u010dn\u00ed mo\u017enost\u00ed je skript USBKill napsan\u00fd v Pythonu. Umo\u017e\u0148uje znep\u0159\u00edstupnit notebook nebo PC, pokud se n\u00e1hle zm\u011bn\u00ed n\u011bkter\u00e9 spou\u0161t\u011bc\u00ed parametry. Vytvo\u0159il ho v\u00fdvoj\u00e1\u0159 Hephaest0s, kter\u00fd skript publikoval na GitHubu.<\/p>\n

Jedn\u00edm z podm\u00ednek pro fungov\u00e1n\u00ed USBKill je pot\u0159eba \u0161ifrovat syst\u00e9mov\u00fd disk notebooku nebo PC, v\u010detn\u011b prost\u0159edk\u016f jako jsou Windows BitLocker, Apple FileVault nebo Linux LUKS. Pro aktivaci USBKill existuje n\u011bkolik zp\u016fsob\u016f, v\u010detn\u011b p\u0159ipojen\u00ed nebo odpojen\u00ed flash disku.<\/p>\n

Dal\u0161\u00ed mo\u017enost\u00ed jsou notebooky s integrovan\u00fdm syst\u00e9mem sebezni\u010den\u00ed. Jeden takov\u00fd byl v roce 2017 z\u00edskali<\/a><\/noindex> u rusk\u00fdch vojensk\u00fdch sil. Pro zni\u010den\u00ed dat spole\u010dn\u011b s nosi\u010dem sta\u010d\u00ed jednodu\u0161e stisknout tla\u010d\u00edtko. V z\u00e1sad\u011b je mo\u017en\u00e9 vytvo\u0159it podobn\u00fd dom\u00e1c\u00ed syst\u00e9m samostatn\u011b nebo ho zakoupit na trhu \u2013 nen\u00ed jich m\u00e1lo.<\/p>\n

\"Kdy\u017e
\n
\nJedn\u00edm z p\u0159\u00edklad\u016f je mini-PC Orwl<\/a><\/noindex>, kter\u00fd m\u016f\u017ee fungovat pod r\u016fzn\u00fdmi opera\u010dn\u00edmi syst\u00e9my a sebezni\u010dit se p\u0159i detekci \u00fatoku. Av\u0161ak cena je nehum\u00e1nn\u00ed \u2013 1699 $.<\/p>\n

Blokujeme a \u0161ifrujeme data na smartphonech<\/h3>\n

\nNa smartphonech s iOS je mo\u017en\u00e9 vymazat data p\u0159i v\u00edcen\u00e1sobn\u00e9m ne\u00fasp\u011b\u0161n\u00e9m pokusu o autorizaci. Tato funkce je standardn\u00ed a aktivuje se v nastaven\u00ed. <\/p>\n

Jeden z na\u0161ich zam\u011bstnanc\u016f objevil zaj\u00edmavou vlastnost za\u0159\u00edzen\u00ed iOS: pokud je t\u0159eba rychle zablokovat stejn\u00fd iPhone, sta\u010d\u00ed p\u011btkr\u00e1t za sebou stisknout tla\u010d\u00edtko nap\u00e1jen\u00ed. T\u00edm se aktivuje re\u017eim nouzov\u00e9ho vol\u00e1n\u00ed a u\u017eivatel nebude m\u00edt p\u0159\u00edstup k za\u0159\u00edzen\u00ed prost\u0159ednictv\u00edm Touch nebo FaceID \u2013 pouze pomoc\u00ed k\u00f3du.<\/p>\n

Na Androidu tak\u00e9 existuj\u00ed r\u016fzn\u00e9 standardn\u00ed funkce ochrany osobn\u00edch \u00fadaj\u016f (\u0161ifrov\u00e1n\u00ed, v\u00edcef\u00e1zov\u00e1 autentizace pro r\u016fzn\u00e9 slu\u017eby, grafick\u00e1 hesla, FRP a tak d\u00e1le).<\/p>\n

Z jednoduch\u00fdch tip\u016f na zablokov\u00e1n\u00ed telefonu lze navrhnout pou\u017eit\u00ed otisku prstu, nap\u0159\u00edklad prsten\u00ed\u010dku nebo mal\u00ed\u010dku. Pokud n\u011bkdo p\u0159inutil u\u017eivatele p\u0159ilo\u017eit palec na senzor, po n\u011bkolika pokusech se telefon zablokuje.<\/p>\n

Nicm\u00e9n\u011b pro iPhone a Android existuj\u00ed softwarov\u00e9 a hardwarov\u00e9 syst\u00e9my, kter\u00e9 umo\u017e\u0148uj\u00ed obej\u00edt prakticky jakoukoliv ochranu. Apple zajistil mo\u017enost vypnut\u00ed Lightning portu, pokud u\u017eivatel nen\u00ed po ur\u010ditou dobu aktivn\u00ed, ale jestli to chr\u00e1n\u00ed p\u0159ed hackov\u00e1n\u00edm telefonu pomoc\u00ed t\u011bchto syst\u00e9m\u016f, nen\u00ed jasn\u00e9.<\/p>\n

N\u011bkte\u0159\u00ed v\u00fdrobci uv\u00e1d\u011bj\u00ed na trh telefony, kter\u00e9 jsou chr\u00e1n\u011bny proti odposlechu a hackov\u00e1n\u00ed, ale nelze je nazvat 100% spolehliv\u00fdmi. Tv\u016frce Androidu Andy Rubin p\u0159ed dv\u011bma lety uvedl na trh telefon Essential Phone<\/a><\/noindex>, kter\u00fd byl vyhl\u00e1\u0161en v\u00fdvoj\u00e1\u0159i za \"nejl\u00e9pe chr\u00e1n\u011bn\u00fd\". Ale nakonec nez\u00edskal popularitu. Nav\u00edc t\u00e9m\u011b\u0159 nebylo mo\u017en\u00e9 jej opravit: pokud se telefon rozbil, nebylo co d\u011blat. <\/p>\n

Bezpe\u010dn\u00e9 telefony tak\u00e9 vyr\u00e1b\u011bly spole\u010dnosti Sirin Labs a Silent Circle. Gadgets se jmenovaly Solarin a Blackphone. Spole\u010dnost Boeing vytvo\u0159ila Boeing Black \u2014 za\u0159\u00edzen\u00ed, kter\u00e9 doporu\u010duj\u00ed zam\u011bstnanc\u016fm obrann\u00fdch agentur. Tento gadget m\u00e1 sebepo\u0161kozovac\u00ed re\u017eim, kter\u00fd se aktivuje v p\u0159\u00edpad\u011b hacknut\u00ed.<\/p>\n

A\u0165 u\u017e to dopadne jakkoli, mobiln\u00ed telefony v oblasti ochrany p\u0159ed neopr\u00e1vn\u011bn\u00fdm z\u00e1sahem jsou na tom podstatn\u011b h\u016f\u0159e ne\u017e nosi\u010de informac\u00ed nebo notebooky. Jedin\u00e9, co lze doporu\u010dit, je nepou\u017e\u00edvat smartphone k v\u00fdm\u011bn\u011b a ukl\u00e1d\u00e1n\u00ed citliv\u00fdch informac\u00ed.<\/p>\n

A co d\u011blat na ve\u0159ejn\u00e9m m\u00edst\u011b?<\/h3>\n

\nDosud jsme mluvili o tom, jak rychle zni\u010dit informace, pokud n\u011bkdo zaklepe na dve\u0159e a ne\u010dek\u00e1te n\u00e1v\u0161t\u011bvu. Existuj\u00ed v\u0161ak tak\u00e9 ve\u0159ejn\u00e1 m\u00edsta \u2014 kav\u00e1rny, rychl\u00e9 ob\u010derstven\u00ed, ulice. Pokud n\u011bkdo p\u0159ijde zezadu a vezme si notebook, syst\u00e9my destroying dat nepomohou. A kolik tajn\u00fdch tla\u010d\u00edtek by bylo, s p\u0159iv\u00e1zan\u00fdma rukama je nebudete moci stisknout. <\/p>\n

Nejjednodu\u0161\u0161\u00ed je nevyn\u00e1\u0161et za\u0159\u00edzen\u00ed s kriticky d\u016fle\u017eit\u00fdmi informacemi ven. Pokud je vezmete, nesund\u00e1vejte z\u00e1mek za\u0159\u00edzen\u00ed na ve\u0159ejn\u00e9m m\u00edst\u011b bez extr\u00e9mn\u00ed nutnosti. Pr\u00e1v\u011b v tu chv\u00edli, kdy\u017e se nach\u00e1z\u00edte v davu, m\u016f\u017ee b\u00fdt za\u0159\u00edzen\u00ed snadno zachyceno. <\/p>\n

\u010c\u00edm v\u00edce za\u0159\u00edzen\u00ed, t\u00edm snaz\u0161\u00ed je zachytit alespo\u0148 n\u011bco. Proto je lep\u0161\u00ed m\u00edsto kombinace \u201echytr\u00fd telefon + notebook + tablet\u201c pou\u017e\u00edt pouze netbook, nap\u0159\u00edklad s Linuxem. M\u016f\u017eete s n\u00edm telefonovat a informaci na jednom za\u0159\u00edzen\u00ed je snaz\u0161\u00ed chr\u00e1nit ne\u017e na \u00fadaj\u00edch najednou na t\u0159ech za\u0159\u00edzen\u00edch.<\/p>\n

Na ve\u0159ejn\u00e9m m\u00edst\u011b, jako je kav\u00e1rna, je dobr\u00e9 vybrat m\u00edsto s \u0161irok\u00fdm v\u00fdhledem a rad\u011bji sed\u011bt z\u00e1dy ke zdi. Takto budete m\u00edt p\u0159ehled o v\u0161ech, kdo se bl\u00ed\u017e\u00ed. V podez\u0159el\u00e9 situaci zablokujete notebook nebo telefon a \u010dek\u00e1te na v\u00fdvoj ud\u00e1lost\u00ed. <\/p>\n

Zamyk\u00e1n\u00ed m\u016f\u017eete nastavit pro r\u016fzn\u00e9 opera\u010dn\u00ed syst\u00e9my, a nejjednodu\u0161eji to ud\u011bl\u00e1te stisknut\u00edm ur\u010dit\u00e9 kombinace kl\u00e1ves (pro Windows je to syst\u00e9mov\u00e9 tla\u010d\u00edtko + L, stisknut\u00ed trv\u00e1 zlomek sekundy). Na MacOS je to Command + Control + Q. Takt\u00e9\u017e se stiskne rychle, zvl\u00e1\u0161\u0165 pokud si to natr\u00e9nujete.<\/p>\n

Samoz\u0159ejm\u011b, v ne\u010dekan\u00fdch situac\u00edch m\u016f\u017eete tak\u00e9 minout, proto existuje dal\u0161\u00ed mo\u017enost \u2013 zablokov\u00e1n\u00ed za\u0159\u00edzen\u00ed p\u0159i stisknut\u00ed n\u011bkolika libovoln\u00fdch kl\u00e1ves najednou (nap\u0159\u00edklad \u00fader p\u011bst\u00ed do kl\u00e1vesnice). Pokud zn\u00e1te aplikaci, kter\u00e1 to um\u00ed, pro MacOS, Windows nebo Linux, pod\u011blte se o odkaz. <\/p>\n

Na MacBooku je tak\u00e9 gyroskop. M\u016f\u017eete zv\u00e1\u017eit sc\u00e9n\u00e1\u0159, kdy se notebook zablokuje p\u0159i zvednut\u00ed za\u0159\u00edzen\u00ed nebo p\u0159i n\u00e1hl\u00e9 rychl\u00e9 zm\u011bn\u011b jeho polohy podle \u00fadaj\u016f z vestav\u011bn\u00e9ho gyroskopick\u00e9ho senzoru. <\/p>\n

Odpov\u00eddaj\u00edc\u00ed utilitu jsme nena\u0161li, ale pokud n\u011bkdo zn\u00e1 takov\u00e9 aplikace, \u0159ekn\u011bte o nich v koment\u00e1\u0159\u00edch. Pokud neexistuj\u00ed, navrhujeme napsat utilitu, za kterou darujeme autorovi dlouhodob\u00e9 p\u0159edplatn\u00e9<\/a><\/noindex> na na\u0161i VPN (v z\u00e1vislosti na jej\u00ed slo\u017eitosti, funk\u010dnosti) a pom\u016f\u017eeme s jej\u00ed propagac\u00ed.<\/p>\n

\"Kdy\u017e
\n
\nDal\u0161\u00ed mo\u017enost\u00ed je chr\u00e1nit sv\u016fj displej (notebooku, telefonu, tabletu) p\u0159ed zv\u011bdav\u00fdmi pohledy. K tomu se ide\u00e1ln\u011b hod\u00ed takzvan\u00e9 \u201efiltry soukrom\u00ed\u201c \u2013 speci\u00e1ln\u00ed f\u00f3lie, kter\u00e9 ztmav\u00ed obrazovku p\u0159i zm\u011bn\u011b \u00fahlu pohledu. Uvid\u011bt, co d\u011bl\u00e1 u\u017eivatel, je mo\u017en\u00e9 pouze zezadu. <\/p>\n

Mimochodem, jednoduch\u00fd tip na aktu\u00e1ln\u00ed probl\u00e9m: pokud jste doma a n\u011bkdo zaklepe nebo zazvon\u00ed (t\u0159eba kur\u00fdr s pizzou), je lep\u0161\u00ed za\u0159\u00edzen\u00ed zablokovat. Jen pro jistotu. <\/p>\n

Je mo\u017en\u00e9 se chr\u00e1nit p\u0159ed \u201ekamar\u00e1dem majorem\u201c, tedy p\u0159ed n\u00e1hl\u00fdm pokusem ze strany t\u0159et\u00ed osoby z\u00edskat p\u0159\u00edstup k osobn\u00edm \u00fadaj\u016fm, ale je to slo\u017eit\u00e9. Pokud m\u00e1te vlastn\u00ed p\u0159\u00edpady, kter\u00fdmi se m\u016f\u017eete pod\u011blit, budeme se t\u011b\u0161it na p\u0159\u00edklady v koment\u00e1\u0159\u00edch.
\n
Zdroj: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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