When I used to work in #firstlevelsupport one of our jobs was to reset mainframe #passwords. 8 character limit: I always reset to "#superman"

https://www.nme.com/news/film/this-is-the-most-hackable-pop-culture-password-according-to-study-3762431

This is the most hackable pop-culture password you can have, according to a study

A study investigating 300million hacked accounts has identified the most hackable passwords with references to pop-culture.

NME