Resolved password policy strength is kind of whacked.

[cmaurand]

The strong passwords are not long enough. They should be at least 12 characters long, 13 is better. At any rate, I put in a long password with special characters and it told me my password wasn't strong enough. A 13 character password with a single special character will take decades to crack. The little 8 or 10 character passwords generated as strong passwords, won't take long to crack at all.

 

[Maarten]

https://support.plesk.com/hc/en-us/articles/4554802742674-Upcoming-changes-in-the-Plesk-Password-Strength-Policy