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

Unverified — auto-generated summary, not yet reviewedPerp DEXJun 18, 2026

A relentless wave of DeFi exploits—spanning smart contracts, bridges, oracles, and governance—is draining billions and setting new hack records across the crypto sector.

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.

Related storylines

Q2 2026 Breaks Crypto Hack RecordsAztec's second $2.1M exploit contributes to Q2 2026 hack records

2 sources

Aztec investigates $2 million exploit of deprecated payments product · theblock.co · T1
Aztec hit by second $2.1M exploit in less than week: SlowMist · cointelegraph.com · T1

Story timeline · 24 entries

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Jul 1, 2026
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Jun 29, 2026
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Jun 29, 2026
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Jun 25, 2026
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Jun 22, 2026
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Jun 21, 2026
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Jun 21, 2026
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Jun 20, 2026
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Jun 18, 2026This story
Aztec Hit by Second Exploit in a Week
SlowMist confirmed Aztec suffered a second exploit of approximately $2.1M within less than a week of the first $2.19M exploit, both attributed to deprecated contract vulnerabilities.
Jun 15, 2026
Aztec Network Loses $2.15M to Exploit
Aztec Network suffered a $2.15M exploit with root cause confirmed as a ZK proof–L1 settlement mismatch, consistent with prior warnings about legacy DeFi contract risk.
Jun 12, 2026
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A new report highlights AI systems actively accelerating the identification of DeFi attack vectors, adding a systematic threat dimension to the isolated exploit incidents reported previously.
Jun 11, 2026
DeFi Hacks Drain $36M+ in Days
Crypto hackers drained over $36 million from protocols using unverified contracts across multiple incidents. A separate governance takeover attack resulted in the minting of 10 billion TOP tokens and the draining of $1.58 million from a Balancer pool. A NovaBox rewards pool was also exploited for 56.73 ETH through a vulnerability in its distribution mechanism.