A petition has sprung up on the 10 Downing street site asking for mandatory notification if a company looses your personal data.
I think this is an excellent idea. There is nothing better than the threat of bad publicity to keep people honest.
As it stands if a company accidentally spill your data to a bunch of credit scammers their best course of action is just to hush it up.
Link via Boing Boing
Link to Petition