Passwords must contain at least one character from each of the following categories and be at least 7 characters in length:

• Characters of European languages (A-Z or a-z, sharp-s, with diacritic marks, Greek and Cyrillic characters)
• Base 10 digits (0-9)
• Non-alphanumeric characters: ~!@#$%^&*_-+=`|\(){}[]:;"'><,.?/