Polymarket Contract Exploited — Attacker Has Already Drained Over $660K!

On-chain investigator ZachXBT has flagged an active exploit targeting a Polymarket smart contract, with the attacker already having drained more than $660,000 in funds at the time of the alert. The breach appears to be ongoing, meaning the total loss figure could climb significantly before the vulnerability is patched or the contract is paused.

Polymarket is one of the largest decentralized prediction markets in crypto, handling tens of millions of dollars in open positions at any given time. A contract-level exploit of this kind raises immediate questions about whether user funds in active markets are at risk and whether the team can isolate the affected contract quickly enough to limit further damage.

Incidents like this serve as a sharp reminder that even high-profile, audited DeFi protocols carry smart contract risk — and that on-chain surveillance from researchers like ZachXBT…