Security Breach at Polymarket
Polymarket, a prediction market platform, paused trading operations on its international stage following a breach involving a third-party vendor. The halt lasted about an hour on Thursday after issues emerged with a third-party vendor’s software. Users on the platform’s Discord forum reported at around 1:30 p.m. that some wallets had been compromised. In response, Polymarket assured users they would be compensated for any unauthorised transactions.
Details of the Incident
Polymarket, known for allowing users to wager on events like elections and video game releases, initiated a cancel-only mode around 2 p.m. This mode enabled transaction cancellations but stopped new trade orders. The security issue revolved around DebugBear, a platform that assists in performance tracking and debugging. A source familiar with the situation confirmed this under anonymity. UK authorities have been informed about the breach, given DebugBear’s location.
DebugBear acknowledged the security incident on social media and advised users of their web-monitoring tools to remove them temporarily. The company’s response to queries was pending at the time.