Porn and Halo 3 file sharing

The depth of depravity on the Internet rarely surprises me anymore. What does surprise me is when vice slips through a seemingly secure system. Today, HushedCasket stumbled upon something particularly odd on Halo 3’s file sharing system. It was an image of several topless women, instead of the typical Halo 3 picture.

The racy picture was uncovered while a user was browsing his recent players and subsequently their shared photos. The offender’s profile and the picture can be found here for those so inclined to see it. The image is at the bottom of the menu, and is obviously not safe for work or minors.

My first question is, how does one circumvent the system and place this picture into the system? Secondly, is this practice very widespread? I imagine that Bungie will squash this as soon as they realize that people are abusing the system in this way, but this is certainly very odd. Have you guys seen anything like this before while playing Halo 3?

[Thanks, Eric!]