A legacy Aztec Connect smart contract has been exploited for roughly $2.19 million, according to a post-mortem published by blockchain security firm SlowMist.
The incident is a useful reminder that deprecated DeFi infrastructure does not simply disappear when a protocol moves on. If contracts remain live, immutable, and funded, they can still become targets — even when the main product is no longer active.
TL;DR
SlowMist says a deprecated Aztec Connect contract was exploited for about $2.19 million.
The affected assets reportedly included ETH, DAI, and wstETH.
The issue involved a vulnerability tied to transaction counts and decoded slots.
The case highlights the ongoing risk of “zombie” smart contracts in DeFi.
SlowMist Details Aztec Connect Exploit
According to SlowMist’s analysis, the exploit affected the legacy RollupProcessorV3 contract connected to Aztec Connect. The protocol had already been deprecated, but the smart contract remained on-chain and could no
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