{"id":7184,"date":"2026-09-11T10:32:17","date_gmt":"2026-09-11T08:32:17","guid":{"rendered":"https:\/\/www.digitalnisebeobrana.cz\/?page_id=7184"},"modified":"2026-09-11T10:35:00","modified_gmt":"2026-09-11T08:35:00","slug":"osint_zdroje","status":"publish","type":"page","link":"https:\/\/www.digitalnisebeobrana.cz\/en\/osint_zdroje\/","title":{"rendered":"Osint zdroje 2026"},"content":{"rendered":"

Praktick\u00e9 zdroje a n\u00e1stroje k t\u00e9mat\u016fm z p\u0159edn\u00e1\u0161ky Praktick\u00fd OPSEC 2026: Obrana proti OSINTu a modern\u00edm hrozb\u00e1m<\/strong>.<\/p>\n

<\/span>Threat model a obecn\u00fd OPSEC<\/span><\/h2>\n

Privacy Guides \u2013 Threat Modeling<\/strong>
\nPraktick\u00fd \u00favod do osobn\u00edho threat modelu: co chr\u00e1nit, p\u0159ed k\u00fdm, jak\u00e9 jsou n\u00e1sledky a kolik \u00fasil\u00ed d\u00e1v\u00e1 smysl.
\nhttps:\/\/www.privacyguides.org\/en\/basics\/threat-modeling\/<\/a><\/p>\n

Privacy Guides \u2013 Common Threats<\/strong>
\nRozli\u0161en\u00ed anonymity, targeted attacks, public exposure a dal\u0161\u00edch hrozeb; dobr\u00fd kontext pro volbu ochrann\u00fdch opat\u0159en\u00ed.
\nhttps:\/\/www.privacyguides.org\/en\/basics\/common-threats\/<\/a><\/p>\n

Privacy Guides \u2013 Common Misconceptions<\/strong>
\nU\u017eite\u010dn\u00e9 proti p\u0159ehnan\u00e9mu OPSECu: opat\u0159en\u00ed m\u00e1 slou\u017eit konkr\u00e9tn\u00edmu c\u00edli a nem\u00e1 st\u00e1t na ru\u010dn\u00edch kroc\u00edch, kter\u00e9 \u010dlov\u011bk dlouhodob\u011b neudr\u017e\u00ed.
\nhttps:\/\/www.privacyguides.org\/en\/basics\/common-misconceptions\/<\/a><\/p>\n

<\/span>Self-OSINT, vyhled\u00e1v\u00e1n\u00ed a pivotov\u00e1n\u00ed<\/span><\/h2>\n

Bellingcat \u2013 First Steps to Getting Started in Open Source Research<\/strong>
\nZ\u00e1klady open-source research, ov\u011b\u0159ov\u00e1n\u00ed a pr\u00e1ce s metodou. Dobr\u00fd vstupn\u00ed rozcestn\u00edk.
\nhttps:\/\/www.bellingcat.com\/resources\/2021\/11\/09\/first-steps-to-getting-started-in-open-source-research\/<\/a><\/p>\n

Google \u2013 up\u0159esn\u011bn\u00ed vyhled\u00e1v\u00e1n\u00ed<\/strong>
\nOfici\u00e1ln\u00ed p\u0159ehled oper\u00e1tor\u016f pro p\u0159esnou fr\u00e1zi, vylou\u010den\u00ed v\u00fdsledk\u016f, site:<\/code>, before:<\/code>\/after:<\/code> a filetype:<\/code>.
\nhttps:\/\/support.google.com\/websearch\/answer\/2466433?hl=cs<\/a><\/p>\n

Google \u2013 indexovateln\u00e9 typy soubor\u016f<\/strong>
\nP\u0159ehled dokument\u016f, kter\u00e9 Google dok\u00e1\u017ee indexovat, v\u010detn\u011b PDF, DOCX, XLSX, ODP a dal\u0161\u00edch form\u00e1t\u016f.
\nhttps:\/\/developers.google.com\/search\/docs\/crawling-indexing\/indexable-file-types<\/a><\/p>\n

Have I Been Pwned<\/strong>
\nPro self-OSINT: kontrola, zda se vlastn\u00ed e-mail objevil ve zn\u00e1m\u00e9m \u00faniku. Praktick\u00e9 i jako p\u0159ipom\u00ednka star\u00fdch slu\u017eeb a \u00fa\u010dt\u016f.
\nhttps:\/\/haveibeenpwned.com\/<\/a><\/p>\n

<\/span>Fotografie, reverse image search a geolokace<\/span><\/h2>\n

Bellingcat \u2013 Guide to Using Reverse Image Search for Investigations<\/strong>
\nPraktick\u00e9 pou\u017eit\u00ed reverse image search a d\u016fvod, pro\u010d \u010dasto pom\u016f\u017ee crop \u010d\u00e1sti sn\u00edmku nebo v\u00edce vyhled\u00e1va\u010d\u016f.
\nhttps:\/\/www.bellingcat.com\/resources\/how-tos\/2019\/12\/26\/guide-to-using-reverse-image-search-for-investigations\/<\/a><\/p>\n

TinEye<\/strong>
\nReverse image search vhodn\u00fd pro hled\u00e1n\u00ed dal\u0161\u00edch v\u00fdskyt\u016f stejn\u00e9ho nebo upraven\u00e9ho obr\u00e1zku.
\nhttps:\/\/tineye.com\/<\/a><\/p>\n

Bellingcat \u2013 Chasing Shadows \/ Shadow Finder<\/strong>
\nUk\u00e1zka, jak lze st\u00edny pou\u017e\u00edt ke z\u00fa\u017een\u00ed mo\u017en\u00e9 lokace a jak d\u016fle\u017eit\u00e9 je ov\u011b\u0159ov\u00e1n\u00ed v\u00edce nez\u00e1visl\u00fdch znak\u016f.
\nhttps:\/\/www.bellingcat.com\/resources\/2024\/08\/22\/shadow-geolocate-geolocation-locate-image-tool-open-source-bellingcat-measure\/<\/a><\/p>\n

Bellingcat \u2013 Chronolocation<\/strong>
\nMetody ur\u010dov\u00e1n\u00ed \u010dasu po\u0159\u00edzen\u00ed fotografie pomoc\u00ed drobn\u00fdch vizu\u00e1ln\u00edch stop, Street View a dal\u0161\u00edch ve\u0159ejn\u00fdch zdroj\u016f.
\nhttps:\/\/www.bellingcat.com\/resources\/2023\/05\/08\/chronolocation-determining-when-a-photo-was-taken-using-facebook-google-street-view-and-assorted-tiny-details\/<\/a><\/p>\n

Bellingcat \u2013 A Beginner\u2019s Guide to Social Media Verification<\/strong>
\nKontroln\u00ed r\u00e1mec pro p\u016fvod, zdroj, m\u00edsto a \u010das fotografie nebo videa na soci\u00e1ln\u00edch s\u00edt\u00edch.
\nhttps:\/\/www.bellingcat.com\/resources\/2021\/11\/01\/a-beginners-guide-to-social-media-verification\/<\/a><\/p>\n

<\/span>Webov\u00e9 archivy a metadata soubor\u016f<\/span><\/h2>\n

Internet Archive \u2013 Using the Wayback Machine<\/strong>
\nOfici\u00e1ln\u00ed n\u00e1vod k proch\u00e1zen\u00ed historick\u00fdch verz\u00ed web\u016f a hled\u00e1n\u00ed archivovan\u00fdch URL a zdroj\u016f.
\nhttps:\/\/archivesupport.zendesk.com\/hc\/en-us\/articles\/360004651732-Using-The-Wayback-Machine<\/a><\/p>\n

Internet Archive \u2013 Save Pages in the Wayback Machine<\/strong>
\nJak funguje Save Page Now a co se p\u0159i archivaci jedn\u00e9 str\u00e1nky ukl\u00e1d\u00e1 a neukl\u00e1d\u00e1.
\nhttps:\/\/archivesupport.zendesk.com\/hc\/en-us\/articles\/360001513491-Save-Pages-in-the-Wayback-Machine<\/a><\/p>\n

ExifTool by Phil Harvey<\/strong>
\nStandardn\u00ed n\u00e1stroj pro \u010dten\u00ed a \u00fapravu metadat ve fotografi\u00edch, PDF a \u0159ad\u011b dal\u0161\u00edch form\u00e1t\u016f.
\nhttps:\/\/exiftool.org\/<\/a><\/p>\n

<\/span>Dom\u00e9ny, registra\u010dn\u00ed historie a certifik\u00e1ty<\/span><\/h2>\n

ICANN \u2013 RDAP<\/strong>
\nOfici\u00e1ln\u00ed p\u0159ehled RDAP, sou\u010dasn\u00e9ho standardu pro p\u0159\u00edstup k registra\u010dn\u00edm dat\u016fm dom\u00e9n.
\nhttps:\/\/www.icann.org\/rdap\/<\/a><\/p>\n

DomainTools \u2013 WHOIS History<\/strong>
\nHistorick\u00e9 registra\u010dn\u00ed z\u00e1znamy dom\u00e9n; dostupnost i rozsah dat z\u00e1vis\u00ed na dom\u00e9n\u011b a tarifu.
\nhttps:\/\/research.domaintools.com\/research\/whois-history\/<\/a><\/p>\n

Certificate Transparency<\/strong>
\nOfici\u00e1ln\u00ed vysv\u011btlen\u00ed ve\u0159ejn\u011b auditovateln\u00fdch CT log\u016f a seznam aktu\u00e1ln\u011b pou\u017eiteln\u00fdch log\u016f.
\nhttps:\/\/certificate.transparency.dev\/logs\/<\/a><\/p>\n

crt.sh<\/strong>
\nPraktick\u00e9 vyhled\u00e1v\u00e1n\u00ed ve\u0159ejn\u00fdch certifika\u010dn\u00edch z\u00e1znam\u016f a jmen uveden\u00fdch v certifik\u00e1tech.
\nhttps:\/\/crt.sh\/<\/a><\/p>\n

<\/span>Internetov\u00e1 infrastruktura<\/span><\/h2>\n

Shodan \u2013 What is Shodan?<\/strong>
\nOfici\u00e1ln\u00ed popis Shodanu: co indexuje, odkud bere bannery a pro\u010d nejde o klasick\u00fd webov\u00fd vyhled\u00e1va\u010d.
\nhttps:\/\/help.shodan.io\/the-basics\/what-is-shodan<\/a><\/p>\n

Shodan<\/strong>
\nVyhled\u00e1va\u010d internetov\u011b dostupn\u00fdch slu\u017eeb a za\u0159\u00edzen\u00ed.
\nhttps:\/\/www.shodan.io\/<\/a><\/p>\n

<\/span>Pseudonymita, stylometrie a korelace identit<\/span><\/h2>\n

USENIX \u2013 Can Pseudonymity Really Guarantee Privacy?<\/strong>
\nKlasick\u00e1 pr\u00e1ce o tom, jak mohou lingvistick\u00e9 a stylometrick\u00e9 znaky naru\u0161it pseudonymitu.
\nhttps:\/\/www.usenix.org\/conference\/9th-usenix-security-symposium\/can-pseudonymity-really-guarantee-privacy<\/a><\/p>\n

Assessing Deanonymization Risks with Stylometry-Assisted LLM Agent<\/strong>
\nAktu\u00e1ln\u011bj\u0161\u00ed v\u00fdzkum propojuj\u00edc\u00ed stylometrick\u00e9 rysy s LLM a \u0159e\u0161\u00edc\u00ed i p\u0159epis textu jako obrannou techniku. Jde o v\u00fdzkumn\u00fd sm\u011br, ne garanci anonymity.
\nhttps:\/\/arxiv.org\/abs\/2602.23079<\/a><\/p>\n

Privacy Guides \u2013 Common Threats<\/strong>
\nPraktick\u00fd kontext k anonymit\u011b, compartmentalizaci identit, IP, fingerprintingu a korelaci platebn\u00edch metod.
\nhttps:\/\/www.privacyguides.org\/en\/basics\/common-threats\/<\/a><\/p>\n

<\/span>Bitcoin a on-chain privacy<\/span><\/h2>\n

Bitcoin.org \u2013 Protect your privacy<\/strong>
\nZ\u00e1kladn\u00ed p\u0159ehled transparentnosti blockchainu, rizik ve\u0159ejn\u00e9ho sd\u00edlen\u00ed adres a doporu\u010den\u00ed nepou\u017e\u00edvat stejnou adresu opakovan\u011b.
\nhttps:\/\/bitcoin.org\/en\/protect-your-privacy<\/a><\/p>\n

Bitcoin.org \u2013 Some things you need to know<\/strong>
\nStru\u010dn\u00e9 vysv\u011btlen\u00ed, pro\u010d Bitcoin nen\u00ed anonymn\u00ed a pro\u010d je ve\u0159ejn\u00e1 transak\u010dn\u00ed historie d\u016fle\u017eit\u00e1 pro privacy.
\nhttps:\/\/bitcoin.org\/en\/you-need-to-know<\/a><\/p>\n

mempool.space<\/strong>
\nOpen-source block explorer pro praktick\u00e9 prohl\u00ed\u017een\u00ed transakc\u00ed, adres a mempoolu.
\nhttps:\/\/mempool.space\/<\/a><\/p>\n

<\/span>Rychl\u00fd toolbox<\/span><\/h2>\n