Post
Topic
Board Beginners & Help
Re: How to prevent security risks when playing blockchain?
by
bob123
on 08/08/2021, 08:25:16 UTC
If I will be specific, Bitcoin blockchain has no security risk, the security risk is 51% attack which is not possible with the hashrate generated by bitcoin miners.

To be fair, that is not true.
There are more risks than just a 51% attack.

Stale blocks themselves are already a risk for the bitcoin economy. Waiting for a reasonable amount of blocks is just a countermeasure.
And still, the probability of an attacker with a reasonable amount of hashrate generating 6 blocks is "quite high". At least in cryptographic terms. In cryptography you want to have it as small as possible - negligible. With Bitcoin and 6 confirmations this is not the case.

It works in the real world, don't get me wrong. But it is by far not perfect and it by far is not true that it "has no security risk".