Cronos Rebuilds Chain After $75M Tectonic Lending Protocol Exploit

Cronos has restored its blockchain to a pre-exploit state and resumed block production after identifying a massive exploit at Tectonic, a decentralized lending protocol on the chain. The incident led to a network halt, which lasted for several days.

According to onchain researcher Weilin Li, the attacker manipulated TONIC, Tectonic's governance token, to inflate its price and use it as collateral to borrow other assets from the protocol. This resulted in an estimated $75 million being affected, with around $6 million bridged to Ethereum.

Cronos said that node operators could restart on version 1.7.8 using updated mainnet snapshots, but did not provide details on how the rollback would affect transactions submitted during the discarded period. The network also announced that it was monitoring the chain for stability and would publish a full postmortem to determine the final accounting.

Crypto.com CEO Kris Marszalek assured that his company's app and exchange were unaffected by the incident, but users of Tectonic depositors remain uncertain about their ability to resume normal activity.