In the middle of a nasty divorce. My wife used my social and other identifiers to have my information forwarded to her personal email account. She did so without my knowledge and/ or permission. Is that legal?
In addition to the prior answer, I should note that with a proper discovery request, you would be required to give her such information anyway. These are issues you should be discussing with your lawyer.
As mentioned in the other answers, your Wife is entitled to your pension information if a proper Discovery Request was sent. She may also Subpoena this information directly from your employer.
If she obtained the information without a Subpoena by lying or misappropriating your identity, you may want to take her Deposition, so that the Court can be made aware of her behavior. In equitably dividing assets, a Judge will oftentimes consider the nature of the parties and the conduct of the parties during the marriage and during the divorce.