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REGULATION · STORYPolymarket Halts TradingAfter Breach

Polymarket Halts Trading After $2.65 Million Breach, Probes Suspicious Israeli Election Bets

story · 4 sources
4 independentfirst seen published latency 5 min

Polymarket suspended new buy and sell orders and paused its relayer after what it called a third-party breach, according to CoinDesk and The Block. The platform placed its exchange in cancel-only mode, meaning existing orders can still be canceled but no new trades can be placed, The Defiant and The Block reported.

The Block said more than After over $2.5 million was lost within minutes on Polymarket, the platform said it has since placed its exchange in cancel-only mode.The Block · · read it at the source was lost within minutes of the exploit. Decrypt reported that a suspected attacker wallet holds about A suspected attacker wallet holds about $2.65 million in POL, per Arkham data.Decrypt · · read it at the source in POL, citing Arkham data. The Defiant reported that one trader said their account was drained of A trader reported an $800,000 account drain.The Defiant · · read it at the source

Separately, Polymarket is investigating suspicious trading activity tied to Israeli elections, The Defiant reported, citing Bloomberg. Some accounts collectively cashed out more than Some accounts collectively cashed out more than $100,000, Bloomberg reported.The Defiant · · read it at the sourcefrom the suspect positions, according to Bloomberg’s reporting. Polymarket’s rules permit it to ban wallets, pursue legal action, or refer cases to law enforcement, The Defiant noted.

It is not clear from available reporting whether the election-trading probe and the breach that triggered the trading halt are connected.

Sources: The Defiant, Decrypt, CoinDesk, The Block

This article is for information only and is not financial advice.

What the market did

Price reactionnot recorded
Independent outlets4
Reports per hour0.78
Noveltyfollow-up4 outlet(s), 226 min spread

Each figure is this site’s own reading, with what it was measured against. A blank is a reading nobody took, not a zero. The before-the-headline window prints the rate a RANDOM hour clears the same bar, because a hit rate without its null is not a finding.

Tags: Polymarket, PredictionMarkets, Exploit, Security, Election

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