Sierra sticks with the old favourites like Disk Utility, but still can’t repair permissions or keychains. A new app, Storage Management, has been added.
Keychain Access
Late last year, the utility for repairing keychains quietly vanished from macOS 10.11.2. No one seems to know where its functionality went.
Why do I have to enter my keychain password every time my Mac starts or restarts?
Can I change password entry dialogs to show the correct characters instead of blobs?
Every time that my MacBook starts up, it warns me that AppleIDAuthAgent wants to use the “login” keychain, and I have to enter my password. How can I fix it?
I have lost my default keychain, which disappeared from Keychain Access. Where can I find it?
Everywhere that you go you need user names, passwords, and other means of proving your identity. In OS X and iOS these are normally stored in a keychain.
Most of our financial and personal transactions should be protected by secure Internet connections. A year on, how has the Heartbleed bug changed this?
The Eclectic Light Company 