Cryptocurrencies should have undone func

Cryptocurrencies should have undone functions for payments so if a market is hacked, the money can be brought back

You need to be logged to save form below.
Will this idea be useful for me if realized?
If this idea will be reality, would you use it often?
I want to actively cooperate on this project
This will be publicly available in your account. So people can contact you.
How can I contribute to this idea?
How much will I pay for this?

Comments

Add your comment if you have idea to improve it.