What is Keychain password

Perhaps to look up best matches from the "Keychain Access Guide

for Mac" may be helpful; since there are many things related to this.

Keychain Access User Guide for Mac (table of contents)- Apple Support

//support.apple.com/guide/keychain-access/toc

Sections such as "Troubleshooting" has some that could be useful now.

• If your Mac keeps asking for your keychain password
• If you’re asked for access to your keychain
• If a trusted app asks for keychain access
• If you need to update your keychain password
• If you forget an app or server password
• If you receive an invitation from a certificate authority

This 'table of contents' for Keychain Access, user guide has very useful

sections. You might need to read through and isolate whichever ones

may apply in your instance. ~ The topic is wide, but worth knowing.

"Keychain Access is a relatively deep wide subject to learn about."