My Brother Got Hacked

The Beginning
So my bro and I just decided to make a game, so we did. The Roblox Studio was fine, just like it was supposed to be. The game was an obby. So we started on the lobby. It was simple enough we completed in in like 1 minute. Anyway, it was all normal. We were excited until...

What The...
So we build the first two obstacles. They were simple enough, just parkour and ladder parkour. We thought that it was time to test the game...then when we joined, the top of the screen said, "Mess with me I hack your place, Loser XD - abbott2004 - . We were super sure we just got hacked in front of our eyes.

Safety first!
So we immediately saved the game, didn't publish it and closed Roblox Studio. We were freaked OUT. We searched the 'abbott2004' profile and it was there! He/she was offline thankfully enough. For proof, search it for yourself. Anyway, we were worried about my brothers Roblox profile...

It stopped!
We loaded up the obby we were making, and the message was gone! We were relieved. And abbott2004 never hacked us since...