many programs request access to keychain at startup after OSSierra update
Following update of the system to OS Sierra at startup many programs require keychain password.
These are e.g
accountsd
identityservicesd
safari
To start work after each break I must input keychain password many times.
What is the reason and what are security issues?
How to avoid this?
MacBook pro 15", system version macIOS10.12
MacBook, iOS 9.2.1