Polymarket loses $2.6M to hack via third-party tool DebugBear, vows refunds
Polymarket suspended trading on its international site after hackers stole roughly $2.6 million from about 700 traders, according to the Wall Street Journal. The company says the breach stemmed from a flaw in DebugBear, a third-party website monitoring tool, and has pledged to reimburse affected users. Polymarket's website was inaccessible at the time of reporting.
GoKawiil's interpretation of the reporting above, not reported fact.
This marks the second major breach this year for Polymarket, following a June phishing attack that drained over $3.1 million, suggesting recurring weaknesses in the platform's security practices and reliance on third-party vendors. Combined with prior reports of scams, insider trading, and debit-card fraud on the platform, the pattern could erode user trust in prediction markets as they push toward mainstream adoption. The incident also highlights broader risks when crypto platforms depend on external tools whose vulnerabilities can cascade into direct financial losses for users.
- Hackers stole about $2.6 million from roughly 700 Polymarket traders via a flaw in third-party tool DebugBear.
- Polymarket has pledged to refund all affected users and suspended trading on its international site.
- This is Polymarket's second major security breach in 2025, following a $3.1 million phishing attack in June.
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Published there as: “Polymarket Just Can’t Stop Getting Hacked Over and Over Again”
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