# Polymarket halts international trading after security incident

Polymarket temporarily suspended trading on its international platform following a security incident. The crypto-based prediction market did not immediately disclose the incident’s nature or scope. The halt disrupts users and highlights security risks for prediction markets and decentralized finance.

**Importance:** 3/5

## Sources

### World
- [The Guardian World](https://www.theguardian.com/world/2026/oct/29/polymarket-temporarily-suspends-trading-security-incident) — Thu, 29 Oct 2026 23:20:16 GMT