You know what will happen to these things?
Every hacker will try - and fail. Then, one day, when no one cares anymore, someone will just try some stuff out of sheer boredom - and that cracks it.
Even the law of statistics say that you can guess any random number of random length. The chances might be smaller than we can imagine, but as long as they exist, someone can crack it.
On a side note: People also never expected to crack the CPS-3. Today we have can emulate it (almost) perfectly, AFAIK.
EDIT: LOL, I just remembered my programming classes back in school. Actually, brute forcing your way into this thing is easy and can be done with one or two lines, as long as it doesn't randomize the number after each wrong key was inserted.
All you need is a loop starting at 0 and adding 1 everytime it fails. And a lot of patience. If it does randomize it however, you just need to be lucky.
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