Quote from: clochard on May 23, 2014, 01:35:17 PM

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The keyboard of my old computer was sometimes malfunctioning, e.g. letters that did not appear on the screen despite hitting them.

Could it have been, that one or two letters continuously were not hit, while I thought I typed them and therefore wrote down on paper another password then I typed?

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If however this is the case, bruteforcing it might help. But still, in my attempt to create a safe password I created a phrase of around 35 letters and numbers , so I am not sure how feasible it is to crack it...

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If you're just looking for a few missing characters in an otherwise exact password, it wouldn't be difficult to write a computer program that could try all possibilities. The program shouldn't take long at all to try them all and report back to you if any of them worked.