21 BTCBitfinex (2016)
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In plain words
More than 2,000 unauthorized transactions sent 119,754 BTC from Bitfinex to the hacker's wallet.
What happened
More than 2,000 unauthorized transactions sent 119,754 BTC from Bitfinex to the hacker's wallet.
What happened to the coins
US authorities seized 94,643 BTC in Feb 2022 and 16,514 BTC more later. Ilya Lichtenstein admitted the hack and was sentenced to 5 years in Nov 2024.
See also
- Hardware walletA hardware wallet is a small device that keeps your private keys offline and signs transactions inside itself. Even if your computer is infected, the keys never leave the device.
- Seed phraseA seed phrase is a list of 12 or 24 ordinary words that can recreate all the keys of a wallet. Whoever has the words has the bitcoin, so write them on paper or metal and never type them into a website.
- Proof of reservesAn exchange's attempt to show it holds the customer coins it owes.
- Hot / cold walletHot: keys on an internet-connected device. Cold: keys kept offline.
References
- justice.gov justice.gov
- storage.courtlistener.com storage.courtlistener.com
- ice.gov ice.gov