I wouldn't call it a "hack" since I didn't need a user name or password.
Just did a search for "Brittany" and about 1000 pictures of brittanys came up.
Keep everything on CD, never trust a network, don't even trust your hard drive when you are connected on line.
Just a tip.

All you need is an address, no hacking required, I'd take this more as a lesson on internet safety. I'd ask the owners of the site if it is a secure site, I bet it isn't. Sure you need a password to access your personal area but that doesn't mean someone can't have access to the info contained within your personal area. All that is needed to start looking around is a hint of the addresses that may be inside that area. To put it simply since you were able to post the link here and have the images appear..... the site is not secure.