Incidents attributed to:
Lazarus operators substituted the implementation contract during a routine Safe multisig transaction, draining ~$1.5 billion in ETH and staked-ETH derivatives from Bybit's Ethereum cold wallet — the largest single cryptocurrency theft in history.
Lazarus operators compromised five of nine Ronin validator nodes and forged withdrawal signatures, draining 173,600 ETH and 25.5 million USDC (~$625M) — the largest cryptocurrency theft on record at the time.
Tokyo-based cryptocurrency exchange Coincheck lost 523 million NEM tokens (~$530M at the time) from a hot wallet that had no multi-signature protection. The largest single crypto-exchange theft at the time — later attributed to North Korea's Lazarus Group.
A North Korean ransomware worm that exploited the EternalBlue SMB vulnerability to spread to ~200,000 systems across 150 countries in 24 hours. Paralysed the U.K.'s NHS and crippled manufacturing globally.
Lazarus operators sent fraudulent SWIFT instructions through the New York Fed to wire $951 million out of Bangladesh Bank's reserve account. A typo on one transfer stopped $850M; $81M still escaped to Philippine casinos.
A North Korean wiper attack tied to the release of 'The Interview' destroyed roughly half of Sony Pictures' IT estate and leaked terabytes of internal documents, emails, and unreleased films.