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DeFi exploit wave 2026Update 4 of 24
Aztec Hit by Second Exploit in a Week

Aztec Suffers Second Exploit in Under a Week for $2.1M

Perp DEXJun 18, 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.

SlowMist confirmed that Aztec suffered a second exploit within less than one week of its first attack, with losses in the second incident totaling approximately $2.1 million. Both exploits were attributed to vulnerabilities in deprecated Aztec smart contracts, with the first incident involving a ZK proof and Layer 1 settlement mismatch.

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