June was a relatively quiet month for crypto theft, at least by recent standards. Total losses across the sector came in at roughly $75.9 million, spread across 40 separate incidents affecting 28 protocols. That figure is down about 7% from May.
Q2 2026 logged nearly $775 million in total hack losses, making it the worst quarter on record for crypto security.
How Humanity Protocol lost control of everything at once
The single largest incident in June wasn’t a clever smart contract exploit or a flash loan attack. It was something more embarrassingly fundamental: compromised private keys stored on a developer’s laptop.
On June 8 and 9, attackers breached Humanity Protocol after malware on a developer’s machine exposed seven private keys tied to critical system functions. Attackers drained the project’s hot wallets, seized control of bridges operating on both Ethereum and BNB Chain, and minted roughly 447 million H tokens. Estimates of total losses from the incident range from $31 million to $36 million.
