Unsure why this is being shared with potential criminal and civil charges being involved.

Also, if true, you likely have enough evidence for a stellar lawsuit against the company once all is said and done. You may also have enough evidence for a second lawsuit against your employer depending on exact circumstances. Hopefully your lawyer is knowledgeable enough to navigate these issues.

In the future, don't involve your employer with security disclosures. Ensure you document everything and email or write the company in question to give them time to fix their issues. What they did is wrong, however you should have reported it to them in a reasonable amount of time. Not that you are required to, but rather, to cover your own butt and prevent this exact type of scenario.