Crypto hackers stole $755 million across 83 cybersecurity incidents, as cross–chain bridges remained the most costly attack vector of the crypto industry.
The second quarter of 2026 has already become the most-hacked quarter on record by incident count, with 83 exploits targeting cryptocurrency protocols, according to analysis by market insights platform Unfolded based on DefiLlama data.
However, the $755.3 million stolen during the quarter so far is significantly lower than the $3.56 billion lost in the fourth quarter of 2020, which remains the costliest quarter on record for crypto hacks.
KelpDAO’s $293 million hack and Drift Protocol’s $280 million exploit were the largest incidents of the quarter.
