Storyline · business · 3 reports from 2 newsrooms

Polymarket trading halted after hack

First reported Oct 29, 3:20 PM ET · Latest Oct 30, 7:23 AM ET · Explainer updated Oct 30, 8:01 AM ET

Where things stand

Binance and Polymarket have suspended trading following recent hacks, the Wall Street Journal reports.

Relay Note

Polymarket first halted international trading and paused its platform on October 29 after users reported that hackers had drained accounts, according to reports from WIRED and the Wall Street Journal. The following day, October 30, the company suspended all trading, as noted by the Wall Street Journal.

The identity of the compromised third‑party provider, the total scale of the losses, how many users were affected, the amount of money taken and any forthcoming security changes remain undisclosed, leaving those details open and unresolved.

Written by AI only from this story's record below, and checked line by line against it. Updated .

Continuum

The living record of this story: every fact with its status and source, updated as reporting comes in. Version 1, updated . Earlier versions

Facts

What the reporting says

Each fact is matched to the exact words of the report it comes from, and checked that those words really say it. Open one to see the source.

  • Reported Polymarket suspended trading after a hack. Is this wrong?
    Source
  • Reported Polymarket halted international trading after hackers drained accounts. Is this wrong?
    Source
    • “Polymarket Halted International Trading After Hackers Drained Accounts.” — WIRED
  • Reported Polymarket paused trading after users reported funds drained. Is this wrong?
    Source

How to read the labels: Reported: one newsroom · Corroborated: two or more independent newsrooms · Confirmed: backed by a primary source such as an official release or filing · Disputed: newsrooms disagree · Updated: replaced by a newer figure. This story as data for AI assistants and developers.

Timeline

What changed: Polymarket halted international trading after hackers drained accounts, saying a third‑party provider was compromised; the platform says trading has resumed and affected traders will be made whole.

How this story developed

  1. New Polymarket suspended trading after a hack.
  2. New Polymarket halted international trading after hackers drained accounts. Polymarket paused trading after users reported funds drained.

Every report, newest first

  1. The Morning Risk Report: Binance and Polymarket Suspend Trading After Hacks — Wall Street Journal

    Plus: Trump administration promised tariff relief in talks to secure U.S. Audi factory and Cleveland-Cliffs to retain Stelco amid jobs dispute with Canadian government.

  2. Polymarket Halted International Trading After Hackers Drained Accounts — WIRED

    The company says an unnamed third-party provider was compromised. Trading has resumed, and Polymarket says affected traders will be made whole.

  3. Polymarket Pauses Trading After Some Users Report Funds Drained — Wall Street Journal

    Traders who lost money on the incident will be ‘made whole,’ the prediction-markets platform said.

Questions

  • The identity of the compromised third‑party provider and the full scale of the losses have not been disclosed. Open
  • It is not clear how many users were affected, the total amount of money taken, or what security changes will be implemented to prevent a repeat. Open

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More: background

Polymarket is a prediction‑markets platform where users bet on outcomes of events. A security breach involving an external service provider allowed attackers to access user funds, prompting the platform to pause trading to protect participants. The company has pledged to reimburse anyone who lost money.

How this works: stories from different newsrooms are grouped by topic, then AI writes the explainer using only those reports. It may miss context the reports don't include.