the Shadow Brokers
loresecurityhacking
The unidentified group that in 2016 and 2017 published stolen offensive tooling attributed to the NSA's elite operations unit, including the EternalBlue exploit against Windows file sharing.
The consequences arrived within weeks: EternalBlue powered WannaCry in May 2017 and NotPetya a month later, together the costliest cyber incidents in history, striking hospitals, ports and factories that had nothing to do with intelligence work. The leak is the definitive argument in the vulnerabilities-equities debate - a government stockpiling secret flaws is one custody failure away from arming the entire world, and this is the case where that actually happened.
Also known as: eternalblue leak, nsa tool dump, equation group leak