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> Each account started with a quota (8K!), but you could easily steal more if you could persuade someone to run a program under your control. That was because if they created a file in your directory, and you deleted that file, then the quota to write the file came from their account, but deleting the file credited the quota back to your account. Needless to say I had a lot of spare quota after a while, so much so that I had to "hide" the fact by creating lots of random-filled files, since the system only tracked quota for free space, possibly the root cause of the bug.

Memory unlocked! We had a messaging program that worked by passing files between accounts. I modded it to siphon a few bytes into my account every time a message was sent, and I added some extra features to make it more attractive than the original version (wish I could remember what I added).




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