At a minimum they had some hacked web UI mayhem going on along with at least 1 admin account compromised…now they are in an at least partially down state. Might be worth alerting the Powers That Be to see if they want to offer assistance and if any measures should be taken to protect servers federated with it.
I’m surprised I haven’t seen more posts yet about this. A rogue or compromised admin put JavaScript redirects on Lemmy.world as well as changed the name and some other things. The other admins removed the compromised admin, but then about 30 minutes later they were reinstated and started wreaking havoc again. The instance eventually went offline completely.