6 websites hacked

I have The Plus Addons on 3 out 6 sites on my shared hosting account(bluehost). I routinely backup and use wordfence to scan my site. Just one day, out of nowhere the entire hosting database got hacked due to the plus addon’s vulnerability. One of the worst addons I’ve ever used. It’s not like we can just easily restore the back up ta-da! everyone is fine or anything. The fact that the hack can even bring my sites down for even half a day is already damaging enough.