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Circle freezes $800M in USDC tied to Binance security incident, shares down

Tradingview • October 30, 2026

Circle Internet Group CEO Jeremy Allaire said the company was closely tracking reports of a potential exploit involving Binance. Circle shares were down 5.6% in after-hours trading.

"In coordination with law enforcement, we have frozen more than 800M USDC associated with the incident and will continue supporting the investigation," Allaire wrote in a post on X.

Binance, the world’s largest cryptocurrency exchange, reported a security breach with an estimated financial impact of $6.3B.

Shares in crypto exchange Coinbase Global slipped 4.8%, while those of Bitcoin buyer Strategy fell nearly 6% in extended US trading.

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Binance Hack: $6.3 Billion Stolen in Largest Crypto Heist On October 29, 2026, Binance, the world's largest cryptocurrency exchange, reported a major security incident involving an estimated $6.3 billion in stolen funds. The attack was attributed to a compromised laptop belonging to a DevOps engineer, allowing unauthorized withdrawal transactions. Approximately $3 billion in assets have been frozen by stablecoin issuers Tether and Circle, while the remaining funds are believed to be under the attacker's control. The incident is being investigated by Binance and law enforcement, with the company assuring users that their funds are safe and that it will cover all losses. This incident, if confirmed, would surpass the previous record for a crypto hack, which was $1.5 billion from Bybit in February 2025. The attack utilized EIP-7702, a feature on Ethereum that allowed the attacker to delegate control of a hot wallet. 85 sources 84

Circle freezes $800M in USDC tied to Binance security incident, shares down

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