Icloud account problems
Hi, I was trying to restore my iphone using my previous backups so I could retrieve some old information and messages I wanted, unfortunately I selected the wrong backup. I used a backup which belongs to some guy who once used my laptop. Now it keeps prompting me to enter his icloud password. Ive also lost all my stuff in the process. I tried sending him an email he has not responded yet, is there a way I could get back my account?
iPhone 6, 11