| This is not true at all. If you are the only person in the world with the private key to your coins, you are the only person who can move them. Period. FTX is a centralized entity that custodies funds. It has nothing to do with a blockchain, which could have completely prevented this. There are many examples of decentralized exchanges (DEXs) for which it is mathematically impossible to loan out depositor's funds without their consent, because the only person capable of signing a transaction to move the funds is the depositor themself. |
Right up to the moment you lose your laptop in a fire, forget the password to your wallet, accidentally run malware on your personal computer, etc. Or if you die and haven't gone through the complication of setting up a way for your heirs to gain control of your accounts.
Yes, you can take steps to mitigate these risks. Those steps are absolutely insane from the POV of everyday human beings.