I'd be very interested in which ones, since I've never received anything despite being in several big breaches (and have received the boatload of spam to prove it). I'm pretty sure this is very country specific.
I can't say which ones as it is one condition of the settlement agreements not to talk about specifics and I gave numbers already.
You don't get compensations automatically. I pursued them with the help of a specialized law firm that takes a cut of the settlements.