Apps
1Password…1Password
● Safe to close
Your password manager.
What it is
1Password and its browser helper, which fills passwords in your browser.
If you close it
Autofill stops in your browser until you reopen it. Nothing is lost.
The verdict
● Safe to close. An app you can quit with ⌘Q. Save your work first if it asks.
In Activity Monitor
1Password…
… means any name that starts this way.
From Procession’s guide, in the words the app shows.