[o-o-]

Another method that stuck with me: in the early days of bitcoin someone built an "ssh paywall" – i.e. you would pay to enable ssh remote authentication for a minute or two.

In essence a hacker would have to pay before attempting to hack the ssh endpoint. Of course the admin would have to pay too but the money would end up on his/her wallet.

Quite ingenious if you ask me.

[joshspankit]

Stuff like this is going to be wild when digital transaction fees for tiny amounts are basically free and transactions can be truly anonymous.