Greetings to everyone in the house. Pls i have a problem which goes like this.

I created a personal Facebook account for my General Overseer, since he has been using it nothing happend. But of recent last month another person logged in to his account deleted all his pictures and upload a photo of a naked woman. I saw it on his profile so i told him becuz he wasn't online so he went online and deleted it and upload all his pictures back again.
The one that suprises me 3 days back they deleted it again and upload another picture there. He now sees it that am the one doing all those things becuz only I and him know's the password. I told him h@ckers can hack into any facebook acct without the owning knowing he said am the one. He said i should investigate and find out who is hacking into his acct. What suprises me and i created this topic is that i went through his account I checked "Active logs" No other device name is there expert his device name he hasn't log in for 2days now but someone changed his profile picture. When i check i didn't see any new device or Computer there that was logged in last.

Pls what will I do? Pls and pls i need help. Thanks for ur time all.

Change the password and log out on every other device. Check settings.

lastbaff:
Change the password and log out on every other device. Check settings.

Done, i added two factor login also. Thanks.