LoL Mystery...? Can something be done to stop this spam?

I saw a link in the page for the new HUD update for this thing called LoL Mystery. I thought nothing of it, just a link spam, I didn't even click on it. Much later, I sit down at my computer to see I got a message from a friend with the exact same link in it, and the same link as his status in the client.

I made the grand idea of clicking said link and watching the video and I'd like to see something done about this. If it's legit, it's clearly bug abuse. But I suspect that it may be a compromise to people's account security and would like to hear a word from someone about what's going on with this, and if something may be done about it.