The best way to learn about opsec is to learn how people fail.
- A site that archives opsec failures of various threat actors, governments, gov workers etc.. OPSEC FAILURES ARCHIVES
- Finnish hacker traced using Monero bad opsec Reddit investigation. Entertaining video
- Pompompurin (Conor Fitzpatrick) BreachForums owner Affidavit
- Harvard student bomb threat and Affidavit
- leaker of classified U.S. docs (Jack Teixeira) Affidavit, Some external investigations, thread 1 and thread 2
- Ross Ulbricht (Silk Road admin) Couldn't keep himself anonymous online and how undercover agent helped the FBI to get him traped the Affidavit
- Lapsus$ kiddies. Video documentary
- BayRob Malware gang with good opsec caught. Conference video
- Man donated to Hamas
- APT1 and learning from their OPSEC failures. Conference video
- Crypto "Mixer" Bitcoin Fog Affidavit
- The 'one tiny slip' that put LulzSec chief Sabu in the FBI's pocket
- Hacker Jeremy Hammond. Entertaining video
- John William Kirby Kelley Member of 'DeadNet' & .onion 'Doxbin'. Affidavit
- How the FBI goes after DDoS cyberattackers. Conference video
- On the Digital Trail
- ChipMixer The Darknet Cryptocurrency Mixer
- The Opsec Fail of North Korean State Hacker
- All "breadcrumbs" investigations by KrebsOnSecurity
- Freedom Hosting (the malicious JavasScript, payload analysis) and TorMail
- Tor markets/activities 1, 2, 3, 4
- Joshua Schulte CIA leaker
- Multiple opsec fails by russian soldiers. Entertaining video
- Top Israeli spy chief exposes his true identity due to bad opsec. Twitter investigation.
- 4chan Syria airstrike
- Ochko123 - How the Feds Caught Russian Mega-Carder Roman Seleznev
- Series of Monumental OpSec Mistakes Led to AlphaBay's Demise
- Researchers Uncovered Uzbekistan Hacking Operations Due to Spectacularly Bad OPSEC
- De-anonymizing ransomware domains on the dark web
- Netwalker ransomware
- Old cat, new tricks, bad habits
- Geost botnet discovery of a new Android banking trojan from an OpSec error
- Opsec Mistakes Reveal COBALT MIRAGE Threat Actors