what are the consequenses of using hacked account?

[Bunny]

I found hacked account id's and passwords for "sweet" websites. I use those id and passwords for top notch sweet sites, like brz, m()f(), 8a8es etc. After using it about 20 days, downloading around 60-70 Gigs of material, I read a thread, where it said that the site will record ip addresses and unauthorized login attempts will be recorded and the site will contact the net provider. I was wondering if it real does happen? If it does, of course it would be embarrassing (I live with parents) more to that, would there be any legal action, or termination by the company? (ATnT)
I want to clarify, it's not my account that is hacked. There are some websites that upload such hacked accounts. I'm using such hacked accounts to have fun...