When will existing blockchains be hackable

[simongoat]

As I understand it bitcoin, ether etc are not hackable with the current technology we have. With quantum computing and AI will this change? And are blockchains able to adapt?

[fuer44]

in the future if any hacker has the ability to hack this sophisticated blockchain technology. in fact hackers are able to hack the bank, but not with blockchain.

[brickafterbrickwalldpt]

Probably there are some critical bugs in the current code of various cryptocurrencies but they still were not discovered. As far as I know, quantum computers might be capable of getting around our all encryption algorithms. This will cause a lot of mess once quantum computers become affordable and more efficient. It is probably matter of years. Tt took a lot of time and effort to create PCs we know today. Let's hope that neither of it will happen anytime soon.