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While 20th-century heists involved scoping out a location, recruiting a person on the inside and having a daredevil getaway driver waiting outside, the 21st-century version looks more like what Bybit experienced today. A hacker stole nearly $1.5 billion in Ethereum (ETH) and staked Ethereum from one of the exchange's offline wallets, nabbing the largest cryptocurrency haul ever. One blockchain security expert said it's likely the all-time biggest heist of any kind, not just crypto.
Bybit CEO Ben Zhou posted on X that the hacker took control of one of the exchange's cold (offline) wallets, manipulating a planned transfer and sending it to an unknown party. "The signing message was to change the smart contract logic of our ETH cold wallet," Zhou wrote. He explained that the hacker "took control of the specific ETH cold wallet we signed and transferred all ETH in the cold wallet to this unidentified address."
Rob Behnke, co-founder and executive chairman of blockchain security company Halborn, told Bloomberg the heist was likely
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