I recently changed jobs, and I am in HR myself.

I recently changed jobs, and I am in HR myself. I’ll let my former HR department know all of the reasons that I left, confidentially, including what happened with my old bosses come down the line over a month later my former supervisor is giving out my PII, on top of all of the information that I already have against my former bosses and former company, what steps do you think should be taken? I honestly have enough information to file a hostile work environment claim as well as multiple other issues I could raise with the government about information being incorrectly handled, given out, and discrimination. What should I do? Should I let bygones be bygones and leave it alone and I hope this doesn’t keep continuing or do I take more steps?