HACKS-report-1.pdf (39 MB)

Crystal Blockchain's February 2023 report tracks crypto and DeFi hacks, fraud, and scams from 2011 through February 18, 2023, counting 231 DeFi hacks, 135 security attacks, and 95 fraudulent schemes. It estimates about $16.7 billion in cryptocurrency theft across that period, with losses shifting from centralized exchange security breaches toward DeFi exploits after 2021. The report identifies Ronin Network as the largest DeFi hack to date at more than $650 million, notes Tornado Cash as a major Ethereum laundering service, and highlights PlusToken, Coincheck, and NFT rug pulls as major fraud and breach patterns.