many bitcoin and blockchain enthusiasts wondered if the inherent crypto nature of both was sound enough to withstand constant hacking. It didn’t take long to get an answer. Like everything else of value running on computers, bitcoin, other cryptocurrencies, and blockchains have come under frequent successful attacks. Hundreds of millions of dollars have been stolen, people have been cheated, and blockchains ripped off.
bitcoin/blockchains have not been hacked
exchanges have had their websites hacked and stupid/foolish servers that store their private keys on those website servers have had hackers use the private keys to take funds linked to those keys, and those keys only
in short. you cant hack a strangers cash under the matress by finding out your silly wife put her cash under a matress you can access.. the strangers matress is not the same matress you and wife have access to