Polymarket’s UMA CTF Adapter Contract on Polygon Exploited Over $520K

On May 22, 2026, prominent on-chain investigator ZachXBT warned that Polymarket’s Universal Market Access (UMA) Conditional Token Framework (CTF) Adapter contract on Polygon was likely exploited in a major security breach, with attackers draining more than $520,000 from the linked addresses so far, primarily POL tokens and USDC.e. ZachXBT Flags Over $520K Suspected Polymarket UMA […] Read The Full Article Polymarket’s UMA CTF Adapter Contract on Polygon Exploited Over $520K On Coin Edition.