Q2 2026 emerges as most-hacked quarter on record with 83 incidents

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.

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