ChainCatcher report, according to Cointelegraph, CertiK data shows that crypto platform attack losses in May dropped to $68.3 million, a nearly 90% decline from $650 million in April. May became the third month in 2026 with losses under $100 million. Approximately $2.6 million stemmed from phishing attacks, and around $9.4 million in stolen funds have been recovered or returned. The largest single loss in May came from the Verus Protocol cross-chain bridge attack, with $11.5 million stolen; THORChain ranked second, with $10.1 million stolen. Code vulnerabilities were the highest-loss attack type, accounting for approximately $45 million, or 66%; wallet or private key compromises resulted in $13.7 million in losses. Cross-chain bridges were the primary target, suffering $28.6 million in losses, or 42%. Data from DeFiLlama shows that 29 incidents occurred in May, seven of which involved private key compromises.
May crypto platform attack losses may drop to $68.3M, 90% lower than April
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Summary
Crypto market attack losses dropped to $68.3 million in May 2026, a 90% decline from $650 million in April, according to CertiK. This marked the third time this year that losses remained below $100 million. Phishing accounted for $2.6 million in losses, while $9.4 million was recovered. The largest incident was a cross-chain bridge attack on Verus Protocol ($11.5 million), followed by THORChain ($10.1 million). Code vulnerabilities caused $45 million (66% of total losses), with $13.7 million lost due to wallet leaks. Cross-chain bridges represented $28.6 million (42%) of total losses. DeFiLlama tracked 29 incidents, seven of which involved private key leaks. Altcoins under scrutiny continue to face pressure as security gaps persist.
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