You need to find passwords in the text and use them at the vault before the bad event happens. The one your after is in the bad ending and is related to the bad ending.
Benson needs multiple passwords. Each are found in the bad endings. Using one will lead to a new chain of events on day 8 and the next password will be in the new chain of events.
There is something on Hoss's route on day 7 that helps with day 8 and allows to avoid one of the passwords. Think it happens on Orlando's route too but once you know the right password it will work on every route, day 8 is a universal one.