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DeFi exploit wave 2026Update 19 of 24
$6M Lazy Summer Vault Exploit Detailed

Lazy Summer Protocol Drained of $6M in Vault Exploit; Months of Preparation Disclosed in Post-Mortem

Perp DEXJul 8, 2026

A relentless wave of DeFi exploits—spanning smart contracts, bridges, oracles, and MEV bots—is draining hundreds of millions and pushing 2026 toward record hack losses.

Summer.fi published a post-mortem revealing that the $6 million Lazy Summer Protocol vault exploit involved months of preparation by the attacker before execution. The incident, previously reported as a cross-chain vault vulnerability, prompted the protocol to suspend all vaults and set deposit caps to zero.

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