Rights regarding name change and privacy

Hello, I legally changed my name nearly 2 years ago to get away from an abusive family and the fact that they were using my social security number for identity theft. I have worked very hard getting my life back on track and now fear that a mutual friend may give them all of my new info, including address, phone, etc. She likes to cause problems, something I did not realize until after I had entrusted my info to her. She even went to court with me when I had my name changed. She is unstable and angry with me and would very likely call and let them know. Do I have any legal recourse should she threaten this, or I find out she has already done so?