Polymarket, the decentralized prediction market platform, is investigating a security breach where attackers compromised an internal Polygon wallet and stole approximately $700,000 worth of POL tokens.
Blockchain investigator ZachXBT first detected the exploit, linking it to a Polymarket UMA CTF adapter contract. The stolen funds were distributed across 15+ addresses and funneled through centralized exchanges.
According to on-chain analytics firm Bubblemaps, the attackers extracted roughly 5,000 POL every 30 seconds before suspicious withdrawals were halted.
Polymarket operations representative Shantikiran Chanal stated the incident was isolated to internal infrastructure. User funds and core systems remain secure. The team is rotating backend keys and assessing any other compromised internal secrets.