Old smart contracts can remain dangerous long after a protocol has moved on.

A SlowMist analysis of a $2.19 million theft from Aztec Connect has put that problem back in focus. The affected contract was part of a deprecated legacy system, not the active Aztec network, but the incident is still an important warning for DeFi users and developers.

TL;DR

• SlowMist analyzed a $2.19 million exploit affecting Aztec Connect’s deprecated legacy infrastructure.
• The active Aztec network was not described as compromised in the primary analysis.
• The issue highlights the risk of immutable contracts that remain on-chain after a product has been sunset.
• For users, the lesson is simple: old protocol interfaces and abandoned contracts can still carry live…