Hackers stole funds from some users of Polymarket's international exchange
Some users of Polymarket’s international exchange had funds stolen in a hack on Thursday, and the company said it would fully reimburse affected traders. Polymarket paused trading for about an hour, citing a compromised third-party provider, and referred the incident to UK law enforcement. A source told CNBC the provider was DebugBear; Polymarket US was unaffected.
More context
Hackers stole funds from some users of Polymarket’s international exchange Thursday, prompting the company to pause trading for about an hour. Polymarket said a third-party vendor had been compromised. A person familiar with the matter told CNBC the breach involved DebugBear, a UK-based website performance monitoring firm; DebugBear said on X that it was affected by an ongoing security incident. Polymarket switched the exchange to “cancel-only mode” just after 2 p.m. ET and said the issue was resolved by 3 p.m. Trading resumed Thursday afternoon. The company said it referred the incident to UK law enforcement and would fully reimburse affected traders. Polymarket US was not affected.
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Reporting
- CNBC — Some Polymarket user funds stolen by hackers, exchange referring matter to U.K. authorities - CNBC
- Gizmodo — Polymarket Temporarily Froze Trading After Hackers Reportedly Stole Millions Via Third-Party Service - Gizmodo
- Wired — Polymarket Halted International Trading After Hackers Drained Accounts - WIRED
- Greenwich Time — Polymarket paused international trading after a security issue involving a third-party provider - Greenwich Time
Verifier’s note
CNBC reports that hackers stole funds from some Polymarket users and that the matter was referred to U.K. law enforcement; WIRED and Greenwich Time also report the theft and U.K. referral. Gizmodo describes the same incident but attributes its account to CNBC.