
CertiK and other researchers said losses fell year over year, but Q2 was the worst quarter by hack count, with wallet compromises, Drift and Kelp driving concentrated damage.
Web3 projects recorded 344 security incidents and about $1.32 billion in losses in the first half of 2026, according to CertiK, which said losses were down 46.8% from a year earlier mainly because there was no repeat of the $1.4 billion Bybit exploit. Researchers said attack activity remained elevated: Q2 2026 was described as the worst quarter on record by hack count with 99 exploits, while TRM Labs said it logged 207 crypto-related incidents in H1 2026, the highest six-month total it has recorded. Phishing led losses in Q1 at $508.2 million, but wallet compromises became the biggest attack method in Q2 at $807.5 million. Drift and KelpDAO accounted for more than 70% of Q2 wallet-compromise losses and were cited as driving more than 80% of second-quarter losses overall.