Resolv DeFi Protocol Hack: How a Compromised Key Led to $23 Million Exploit

At first glance, this might look like another smart contract exploit. But it wasn't. The code worked exactly as intended. Instead, it was a case of overly trusting off-chain infrastructure.

In a matter of minutes, an attacker was able to mint tens of millions of Resolv's unbacked stablecoins (USR) and extract roughly $23 million in value, triggering a sharp de-peg and forcing the protocol to halt operations.

As DeFi systems become more complex and integrate with traditional finance, the attack surface expands beyond smart contracts to include off-chain components and key management systems.

The Resolv hack serves as a critical reminder that in DeFi, security is only as strong as the weakest link in the entire system architecture.