

I contacted their live support, here's the conversation: After comparing the new account name with part of my email, I came to the conclusion that someone mistyped their email address, and registered an account on my address. But I already had an account, I didn't register this one. In August I received an email from Skype thanking me for registering an account. You would generally have to come up with a password, then whittle it down slowly until you passed all of the rules, usually making it weaker in the process. Even if you tried to come up with a good password that met the rule, you might fail by accident because "89cRbcThe*)" has the word "The" in it. This meant that perfectly reasonable passphrases (like "correct horse battery staple") would be rejected. There may have been other restrictions too, I don't recall the exact details. No English words or names could be present.

No sequence of 3 or more increasing or decreasing letters or numbers could be present (and not even consecutive: "ta/Tbs#cz" would be rejected because it contains "abc").Ĥ. No character could be repeated more than two timesģ. At least 3 out of the 4 categories uppercase, lowercase, digit, special characterĢ. Yeah, at my last job, someone implemented a password strength checking feature that would actually reject stronger passwords.
