Coinbase Says 99% of Customer Assets in Cold Storage After $6.3B Binance Hack

Coinbase says more than 99% of customer assets are held in offline cold storage following Binance’s $6.34 billion hack on Oct. 29, 2026. In a Nov. 4 disclosure, the publicly traded U.S. crypto exchange detailed its distributed signing keys, emergency shutdown controls, and withdrawal restrictions. While Coinbase says its systems were unaffected, its latest security claims offer a closer look at how the company manages billions in customer holdings. Coinbase said on Nov. 4, 2026, that more than 99% of customer assets are held in offline cold storage, outlining its security protections. The U.S.-based cryptocurrency exchange issued its statement on X , emphasizing the importance of maintaining customer confidence following the multibillion-dollar security breach at Binance, one of the world’s largest cryptocurrency trading platforms.

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