Helpoverwatch affects all accounts?

Basically, I got overwatch banned yesterday so my good friend offered his account on which I can legit play without any hacks until I get a new account, my question is , will it be safe ? I am scared because I got my account overwatch banned so if I use his account they automatically detect that my other acc is banned and they ban it as well even thought I don't hack on it, could someone answer please?

Only if is linked to the same phone number otherwise you're safe.