I'm Lucy, and I'd be happy to answer your questions today. I'm sorry to hear that this happened.
South Carolina actually does not have criminal statutes of limitation for most offenses. The computer crimes statute does not list a specific statute of limitations. S.C. Code of Laws, Section 16-16-10. So, it is theoretically possible for your wife to tell police that you hacked your ex-wife's email account or social media accounts during your first divorce. However, if you were able to get the information because your first wife had given you the password ***** hadn't changed it, then she technically gave you permission. It's not likely that they would bring charges on a misdemeanor committed 5-6 years ago when the person complaining is not the victim. Also note that jail time for something like this would be extremely unlikely unless you'd used the emails to gain money you wouldn't otherwise have gotten or you had an extensive criminal record. Any civil penalties would be payable to your former wife, since she is the one you trespassed against, and the statute of limitations for that is three years. S.C. Code of Laws, Section 15-3-530. The person who would have a right to sue is your first wife, not whoever sent the emails (but, again, it's too late).
In the divorce, I can't imagine how that information is going to be relevant to anything, so if your current wife tries to introduce them, you can object. That's the first hurdle - how is this information relevant and what bearing does it have on the current proceeding? Whether or not you accessed your former wife's email has nothing to do with THIS marriage.
Also, extortion is a felony, and what your wife is doing is considered extortion. It is illegal to threaten to accuse someone of committing a crime unless they give you money. S.C. Code of Laws, Section 16-17-640.
One option here is to hire another lawyer who can send her a "cease and desist" letter telling her that she needs to back off immediately. As long as she thinks she can scare or berate you into doing what she wants, she'll keep trying. Having a lawyer might help. For one thing, you can require that all communication go through your lawyer and insist that she stop contacting you.
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