The Morning Risk Report: Binance and Polymarket Suspend Trading After Hacks

A facts-only brief, written by a local AI model from this article in The Wall Street Journal, October 30, 2026. It may contain mistakes, and it is not the article: the full story is at wsj.com.

Binance suspended deposits and withdrawals Thursday while investigating a cyber heist it valued at approximately $6.3 billion. Founder Changpeng Zhao stated that user funds remain secure and that stablecoin issuers Tether and Circle froze between $1.7 billion and $3 billion in stolen assets. Cybersecurity firms TRM Labs and Pangolin Intelligence attributed the attack to North Korea’s TraderTraitor group. Separately, Polymarket paused trading after a security flaw in vendor DebugBear allowed attackers to drain user accounts, with a suspected wallet holding over $2.5 million in stolen funds.

Background

• Polymarket assured traders that it would reimburse those who lost money and referred the incident to U.K. law enforcement, where DebugBear is based.
• DebugBear advised customers to remove its embed code from their websites following the security incident.
• Polymarket is also investigating suspicious trades related to the Israeli election amid growing scrutiny of insider trading on prediction markets.
• The heist is described as the largest cryptocurrency theft in history.

Read the full article at wsj.com

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