Is there a way to find the original owner of an email address or phone number that has changed hands?

I'm trying to solve a mystery (the identity of a person who used to anonymously harass and threaten me and others). I have the old email address of the person in question, but their account was deleted and I took over that email address. I also have their phone number has since been given to another person.

submitted by /u/jazzintoronto
[link] [comments]

from hacking: security in practice https://ift.tt/3mTZw0i