Crypto Hacks Drop 7% in June to $76 Million but Humanity Protocol Breach Dominates

Crypto hackers stole approximately $75.9 million across 40 incidents in June, down 7.1% from May’s $81.7 million, according to blockchain security firm PeckShield. The Humanity Protocol exploit was the month’s largest single breach, initially reported at $31 million before the project’s own investigation placed losses closer to $36 million. Founder Terence Kwok attributed the attack to a compromised private key.

Other Major Incidents Throughout the Month

Syscoin Bridge lost $10 million through a validation flaw that allowed an attacker to mint billions of unbacked tokens without a corresponding burn. A bot linked to the address JaredFromSubway.eth, known for running MEV sandwich attacks, was itself exploited for $7.5 million. Aztec’s deprecated infrastructure suffered two separate attacks totaling roughly $4 million across contracts the Aztec Foundation says it no longer controls. Additional losses hit Secret Network, Polymarket users, SecondFi and TESSERA.

2026 Hack Losses Already Exceed $750 Million

Despite June’s relative calm, the year’s total losses remain severe, driven primarily by two North Korea-linked attacks in April. Drift Protocol lost $285 million and Kelp DAO’s LayerZero bridge was drained of $292 million through a compromised verifier network.