These exploits sound similar to the recent Facebook photo exploit. Google keeps information in redundant server farms so they can continue to server billions o

These exploits sound similar to the recent Facebook photo exploit. Google keeps information in redundant server farms so they can continue to server billions of pages a day. Complex permissions usually do not mesh well with this method of keeping data because it is impractical and maybe impossible to use sessions or cookies to see if the user attempting to access a file has permissions to do so. A (startup?) company could do a lot to solve these problems by rethinking the way permissions work with distributed data. I think the space is wide open and the market needs a better solution.