My Yahoo ID & Password was used without my knowledge and the person using it has destroyed a relationship I had by personating both me and my friend. This person was sending emails to my friend (like they were from me) and this person also made a fictitious AOL email using my friend's name (making it look like the emails were from my friend) and sending them to me. How do you prove who really sent the emails? I have changed my password on Yahoo but I'm really not safe because anyone can take your name and create a new account making it look like the emails are from you and they can email anyone and create a lot of hardship and stress in having to go back and prove that you really didn't send the emails. How do you prevent this from happening??? Can you get a record from Yahoo showing where the emails came from? How do you go into your recycle been for Yahoo and retrieve old email or can you?