El Capitan

Apple has introduced a new security feature in Mac OS X El Capitan (10.11) called System Integrity Protection (sometimes referred to as rootless). What is System Integrity Protection? According to Apple’s documentation: A new security policy that applies to every running process, including privileged code and code that runs out of the sandbox. The policy extends additional protections to components on disk and at run-time, only allowing system binaries to be modified by the system installer and software updates. Code injection and runtime attachments to system binaries are no longer permitted. ...

I had some Apple Keychain issues after upgrading to Mac OS X El Capitan yesterday. Apple provided a reasonable resolution (blow away the login Apple Keychain and re-create it). As it turns out, my issues weren’t limited to just the El Capitan upgrade. The Juniper Networks’ VPN client, Junos Pulse, has some pretty awful issues. The behavior went something like this: Save a password for a VPN connection in Junos Pulse VPN client The first use of the VPN connection will be fine Disconnect VPN connection Close Junos Pulse VPN client Open VPN client Attempt to connect to recently created VPN (with saved password) All hell breaks loose; Apple Keychain issues galore. Literally every Apple Keychain becomes unusable to some extent and a reboot is required to resolve the issue. ...

I started having some Apple Keychain issues after upgrading to Mac OS X El Capitan. At random, I would be asked to sign back into accounts that I am logged into through Internet Accounts in System Preferences. I thought it a minor issue but it became unavoidable though once El Capitan told me it couldn’t find my login Apple Keychain after logging in: Something related to the ’login’ Apple Keychain happened during the Mac OS X El Capitan upgrade process I’m assuming and after a reboot this morning everything went to hell in a hand basket it would seem. ...