"hacked accounts being used for sextortion"

This almost makes you miss the days when scammers only used to pose as princes of Nigeria. Well, just remember the scammer doesn't actually know shit, and giving them money will only feed them (it won't help).

Some of this is going to be more general security based stuff because this partially pertains to that.

Secure things / accounts where ever it is possible to do so. Avoid sending sensitive things on public (and less secure) accounts. Communicate with people you know well on private accounts?

I suppose I should also say don't be stupid?