AOK (German Health Insurance) Website→

This is the online customer portal of the German health insurance company AOK. They have an extensive set of rules for both passwords and usernames. The password rules are:

• Length between 8 and 14 characters
• At least one letter, one number and one special character
• Special characters are: !@$%/=?`+@#_.;:{}|
• The password must not start with ? or !
• The password must not include the username
• The password must not be the same as any of your previous passwords

The rules for the username are:

• Length between 1 and 12 characters
• No umlauts allowed (äöü), no special characters, no spaces, no ., no _, no ß