Is there anything I can do to stop imsi attack by rooting phone or installing software

[KaLeO_LaNi]

my sisters soon to be ex wife launched a malicous hack/attack from my limited knowlede of all things tech i believe it is an imsi attack. Just to note I do have a t-mobile personal cell spot which I immediately unplugged after researching imsi/ stingray. anyways i have a t-mobile samsung Galaxy S6 model SM-G920T android 6.0.1 version do i need to give build info or baseband info as wel? any help would be greatly appreciated. also if anyone can point me in the direction of "modifying" my cell spot to reverse the role on x sis in-law would be most helpful. i am willing to assume any and all consequences associated on that front. Thnx in advance

 

[Tim1954]

They have built an app for that..

 

[Rukbat]

It's like a man-in-the-middle attack - a fake "tower" that looks like the real one. If it's done right, you can't tell it from a real one, so you can't do anything about it.