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Coinbase Lays Out Hot Wallet Controls as Customers Ask if a Binance-Style Hack Could Hit It
Customers asked whether Binance's Oct. 29 breach could happen at Coinbase. The exchange pointed to signing keys that are never reassembled, caps on refilling hot wallets and switches that can pull keys offline.
Dextape brief
Coinbase stated it had not been hit by the Binance hot wallet theft and keeps over 99 percent of customer holdings offline. The claim came in a November 4 blog post explaining how the firm protects funds. Binance estimates its loss from the October 29 attack at roughly $6.3 billion, and blockchain firm TRM Labs linked the stolen funds to the TraderTraitor unit tied to North Korea. Coinbase described three protections: cold-side signing keys split into fragments never reassembled, limits on transfers from cold storage into hot wallets, and emergency shutoffs. Customer assets are held one-for-one, remain owned by customers, and are not lent out without instructions. Figures dated September 30 showed $8.6 billion in cash and equivalents and $2.2 billion in crypto investments, consistent with its 10-Q.
Why it matters: It shows how a major exchange is describing hot wallet safeguards after a large breach at a rival, a question many crypto users are asking about custody.
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Dextape context
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Terms in this story
- Hot wallet
- A wallet whose keys sit on an internet-connected device, such as a phone app or browser extension.