Unauthorised access to email and facebook accounts?

[Sarah Abbott]

Yes. Its called harassment at best, it could also be considered fraud.

Several options.

How old are you? If teenagers tell your parent and get them to speak to the ex girlfriends.

Change all account information containing personal information so she cannot hack. Even if it's as simple as keeping the same question/answer but substitute random letters with numbers so she cannot work them out.

Call her on it. Tell her you know what she's doing and if it happens again you will contact the police. They will be able to pinpoint her.

Contact the support teams for websites you know she has hacked and ask for a list of IP addresses that have recently logged into your account.

Finally if none of the above work go to the police.