Advice needed !!

So my boyfriends ex has a old phone of his which has all his information of emails,social media etc . Well she has been hacking his stuff and deleting pictures of my son and I but keeps pictures of their daughters up . They have 2 daughters together which I treat them as my own . Well she hacked his Snapchat and I had sent him nudes since we’re a couple well she downloaded them to her phone and made a fake account of me and posted them and sent my family members all the nudes is there anything I can do ?