Is it possible for Blockchain to be hacked?Yes, blockchain can be theoretically hacked, but it is a complicated task to be achieved. A network of users constantly reviews it, which makes hacking the blockchain difficult.
Москвичей предупредили о резком похолодании09:45
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«Убийство великого верховного лидера Ирана принесет США и Израилю лишь позор», — отметил политик.
Watch: Moment Iran's state TV announces Supreme Leader has been killed
That doesn’t mean that revocation is impossible. In fact, there are several clever tricks for banning credentials in the zero-knowledge credential setting.