Hackers Swipe Millions From Polymarket Users in Latest Security Breach
Prediction market platform Polymarket temporarily halted trading on its international exchange following a security breach that drained millions of dollars in cryptocurrency from user wallets. Malicious code on the website sold signed-in traders positions and transferred their funds to hackers. Polymarket states that impacted users will be made whole, with refunds planned for approximately 726 affected wallets. The exchange has referred the matter to United Kingdom authorities.
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- ✓ Polymarket temporarily halted trading on its international platform following a security breach.
- ✓ Malicious code sold some signed-in traders' positions and moved funds to hackers on October 29.
- ✓ Polymarket is refunding about $2.7 million to 726 affected wallets.
- ✓ The exchange is referring the matter to United Kingdom authorities.
What changed
Polymarket temporarily halted international trading and announced plans to refund affected users following a third-party security compromise.
Live updates
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Hackers Swipe Millions From Polymarket Users in Latest Breach
Prediction market platform Polymarket temporarily halted trading on its international exchange following a security breach that drained millions of dollars in cryptocurrency from user wallets. Malicious code on the website sold signed-in traders positions and transferred their funds to hackers. Polymarket states that impacted users will be made whole, with refunds planned for approximately 726 affected wallets. The exchange has referred the matter to United Kingdom authorities.
Why it matters
The incident highlights vulnerabilities in third-party software supply chains used by digital asset platforms. Polymarket operates as a crypto-based site allowing users to wager on real-world events, distinct from its federally regulated US counterpart. International trading was paused while investigators traced the breach.
What is confirmed
- Polymarket temporarily halted trading on its international platform following a security breach.
- Malicious code sold some signed-in traders' positions and moved funds to hackers on October 29.
- Polymarket is refunding about $2.7 million to 726 affected wallets.
- The exchange is referring the matter to United Kingdom authorities.
Still unconfirmed
- The incident originated with UK-based web performance monitoring firm and Polymarket vendor DebugBear.
What to watch next
- Confirmation of the exact recovery timeline for refunded users
- Further details from UK authorities regarding the investigation into the vendor compromise
confidence 100%Sources used for this update (13)
- finance.yahoo.com — Yahoo Finance - Stock Market Live, Quotes, Business & Finance News
- CNBC — Some Polymarket user funds stolen by hackers, exchange referring matter to U.K. authorities
- NBC News — Polymarket trading halted after vendor compromise; impacted users will be ‘made whole’
- The Washington Post — Polymarket pauses international trading after outside vendor’s security issue
- The Guardian — Polymarket temporarily suspends trading on international platform due to security incident
- WSJ — Hackers Swipe Millions From Polymarket Users in Latest Security Breach
- www.ibtimes.com — Compromised Software Caused Polymarket To Pause Trading. Some ...
- gizmodo.com — Polymarket Temporarily Froze Trading After Hackers Reportedly ...
- rt-english.com — Hackers drain millions from Polymarket accounts — RT World News
- thehackernews.com — Hackers Steal About $2.7 Million From Polymarket Traders via ...
- www.news9live.com — Polymarket hacked again? Millions in crypto affected after ...
- jowhar.com — Hackers Swipe $6.3B From Binance in Massive Crypto Platform Breach - Jowhar News Leader | Somali News
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