Password protection

[Wirenut]

Is there a way to password protect a Numbers file and have it secure enough to protect a spreadsheet filled with passwords?

 

[Weaselboy]

Numbers has a password feature, but I have no idea how secure it is.



https://support.apple.com/guide/disk-utility/create-a-disk-image-dskutl11888/mac

What I would do is create a secure disk image (instructions at the link), then keep the file inside that encrypted disk image. That I know is secure.