That's crappy. Hopefully you will be able to block that link and while you're at it, tell them to leave us alone and to just play with each other.

I had the same problem too. I thought someone was trying to hack into my account because along with the message everyone else is getting, it also gave the IP of the person trying to log into my account. I looked it up and it wasn't even close to mine. It belonged to some Sanchez dude in Texas. That's why I thought someone was trying to hack into my account.