Cozy Finance Hit by Second Exploit on Optimism

Cozy Finance has fallen victim to another exploit on Optimism, with an attacker draining around $170,000 from the DeFi insurer. This is not the first time Cozy Finance has been targeted on this blockchain - a similar attack in August 2025 cost the protocol about $427,000.

The latest attack occurred early Monday morning, with Blockaid detecting the exploit and publishing an alert at around 05:56 UTC. The attacker had bridged the funds out of the protocol just before the alert was published.

According to OP Mainnet explorer data, the exploit transaction moved approximately 163,326 USDC.e out of the protocol across 63 token transfers. The attacker also burned roughly 1.6 million Cozy PToken (CPT) in the process.