there are only 10⁴ = 10,000 four-digit security codes possible Yeah, that's not a big number, even manually, much less for a hacker. I went to school for two

there are only 10⁴ = 10,000 four-digit security codes possible Yeah, that's not a big number, even manually, much less for a hacker. I went to school for two months and the TV in my dorm room had been locked down to a few channels by some parental security crap, presumably by a previous occupant. With nothing better to do, I manually went through codes until I found the right one and unlocked it to open up more channels for myself. It was only intimidating when I was entering random guesses at first. As soon as I decided to just methodically go through all possible combinations, it only took me something like two or three days of doing this when I wasn't in class and was watching TV anyway. I am so glad I never tried to use BS like that with my own kids.