Crypto hacks fell slightly in June 2026, but attackers still managed to steal tens of millions of dollars across multiple networks. The month’s data shows fewer losses than May, yet the scale and sophistication of recent exploits remain a serious concern for the wider crypto community.
In June 2026, monitoring by security firm PeckShield shows 40 major hacks, with total losses of about $75.87 million. That figure represents a 7.13% month‑over‑month decline from May’s reported $81.7 million, so aggregate damage dipped slightly even as the number of incidents stayed high. This mix of steady attack volume and smaller average losses suggests that some projects are catching more issues early while still leaving critical gaps open.
Within that June tally, Aztec’s legacy infrastructure stood out as a key weak spot. Attackers exploited both Aztec Bridge (Aztec Connect) and the Aztec Private Rollup Bridge within days, draining just over $4 million from deprecated contracts that still held user funds.
Aztec Labs and the Aztec Foundation stressed that “the affected contracts have no connection to the current Aztec network or the AZTEC ERC‑20 token,” underscoring that the exploits only hit retired systems.
Humanity Protocol, KelpDAO and Multi‑Chain Laundering
The most closely watched June case involved the Humanity Protocol exploit, which quickly turned into a multi‑chain laundering campaign. Investigators, including on‑chain analyst ZachXBT, reported that the Humanity Protocol exploiter moved stolen funds across Bitcoin, Solana, Hyperliquid, and BNB Chain to obscure the trail. According to HTX Insights, the exploiter transferred 15,403 ETH (about $23.6 million) to a fresh Ethereum address and then sent it to Bitcoin, where it “merged with proceeds from the Kelp DAO exploit.”
The way these funds were mixed raised a major red flag. HTX Insights found that stolen funds from both the Kelp DAO and the Humanity Protocol exploits ended up in the same place, suggesting either the same external threat actor or a closely linked cybercriminal group.
Over $8 million from the Humanity Protocol has already been laundered through channels linked to groups such as Lazarus. This trend suggests that experienced attackers now treat DeFi exploits as part of a bigger cross-chain strategy.
Taken together, June’s 40 hacks, Aztec’s legacy‑bridge losses, and the Humanity‑KelpDAO linkage show how today’s crypto threats stretch across old contracts, new protocols, and many chains at once.
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