So i got a deviantwatch journal from AliBlackWolf (https://www.deviantart.com/aliblackwolf)'s journal and this is what it said:
Hacker !!!!!!!!!!!!! look out!
Apparently, there's a hacker going around and hacking into other people's accounts to block your friends so that your friends blocks you, gets you in trouble, and could get you banned from DeviantART. If you get this warning, copy and paste this into your Journal and spread this to everyone.
so be careful. And spread this to your friends.