So I just purchased a 2015 MacBook Pro from a computer store and I got a weird vib from the guy selling it to me. Maybe it’s because I just had my Paypal card compromised this morning but none the less, I felt uneasy. He was salesman and I got the feeling when they said they wiped it and did fresh install of Mojave that they could have installed some software to steal my info when I started setting it up. So my question is: 1)Was I right to wipe it again and fresh install? 2)If there WAS malicious software on it, did I effectively remove it?