What should I do in this situation? (details included).

As I posted before, I lost my job two weeks ago. Standard protocol was to take my company laptop from me, which I was fine with. They told me when they did that they would erase it and reformat it. I told them that was great, the sooner the better, because I couldn’t remember if I had any passwords or sensitive data on it and it could be a vehicle for stealing my identity.

It has been two weeks. I just found out from a current employee that they didn’t erase my old laptop at all. In fact, they gave it to a contractor who spent a week hacking my password and is now using it.

I am furiously changing any passwords that could have been on that laptop.

What else should/can I do?