Polymarket suspected to have been hacked, with over 300000 records leaked

According to Dark Web Informer's disclosure on X platform, the decentralized prediction market platform Polymarket is suspected to have been hacked, with over 300000 records and vulnerability exploitation toolkits leaked to cybercrime forums. The attacker claimed to have obtained data through unrecorded API endpoints, page bypassing, and CORS misconfigured, with an extraction date of April 27, 2026. The leaked data includes approximately 10000 user identity information, 41000 comments, 485000 market metadata, 250000 active CLOB markets, and 292 event submitter parser addresses, along with multiple vulnerability concept verification codes.