Mt. Gox, other bitcoin exchange sites hacked?

Received an anonymous tip today, here’s what it had to say:

From: Jake

Subject: Buttsec?

Message Body:

There is a pastebin post going around that was created by a group called Buttsec. They claim to have “compromised” MTGOX and possibly other play money-to-real money sites.

Jake’s link led to site where a group called BUTTSEC (a pun on lulzsec) had posted their manifesto

all your bits are belong to us

Digging further, we found some other interesting notes

We’ve already seen reports of some people claiming they’ve had money transferred out of Mt. Gox without their knowledge, could this be indicative of something larger?

Let us know in the comments!