On-chain researcher Zeeme said Coinbase holds about 959,000 BTC, worth roughly $103bn, and has not suffered this kind of attack in 14 years because MPC splits each private key across isolated hardware chips. Zeeme contrasted this with an October breach of a Binance DevOps worker's computer that led to about $6.36bn being moved in 20 minutes.
Researcher Zeeme says Coinbase's MPC key splitting makes hacking harder
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