Polymarket Hack Exposes User Data

First reported on bleepingcomputer on June 26, 2026.

A recent hack on Polymarket has exposed user data, with hackers stealing $3 million from customers. This is a significant security issue for users of the platform.

What it looks like

• Data breach on Polymarket
• Unexplained charges on bank statement

How to fix it

1. Contact Polymarket support to report the issue.
2. Explain the data breach problem to the support agent.
3. Provide your account details for verification.
4. Request assistance in resolving the data breach issue.
5. Follow the support agent's instructions to complete the process.
6. Monitor your bank statements for any suspicious activity.

Affected products

• Polymarket

Sources

• Polymarket customers lose $3 million in supply-chain attack — rss:bleepingcomputer

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Search terms covered: polymarket hack, polymarket data breach