Polymarket-linked UMA adapter appears exploited for $520K, ZachXBT says
ReadZachXBT said that Polymarket’s smart contract was drained for about $520,000, pointing to an alleged attacker address that received hundreds of small transactions from the adapter contract.A Polymarket-linked UMA Conditional Tokens Framework (CTF) Adapter contract on Polygon may have been exploited for about $520,000, according to blockchain investigator ZachXBT.ZachXBT said in a Friday Telegram post that the suspected exploiter had drained funds from addresses allegedly connected to the adapter contract. Cointelegraph could not immediately verify whether Polymarket user funds, active markets or withdrawals were affected.The UMA CTF adapter is an oracle contract used to help resolve Polymarket prediction markets through UMA’s Optimistic Oracle.Polymarket is the world's second-largest prediction market with $3.7 billion in monthly trading volume, according to DefiLlama.Polyscan data reviewed by Cointelegraph showed more than 100 recent small transfers into the alleged attacker wallet. Most were worth up to 5,000 Polygon (POL) tokens.Cointelegraph contacted Polymarket for comment but had not received a response by publication.Address of the alleged Polymarket adapter contract attacker. Source: PolygonscanThis is a developing story, and further information will be added as it becomes available.

