How to check whether a macOS Installer app still has a valid signature, and where to find its hidden Installer packages.
Checking signatures, notarization, and 64-bit code on different items like apps, command tools, and Installer packages just got much simpler.
No more fiddling with contextual menus: this new version also adds a busy spinner, and opens older packages too.
Apple’s most meaningful communication about this inexcusable failure of support were the 404 errors from its download pages.
Validating signatures isn’t straightforward. GUI apps are limited, and command tools confusing and prone to user error.
Don’t rely on being able to use any Apple installer package unless it has been downloaded recently: its certificate is about to expire.
As feared, the studentd daemon and its mysterious certificate have reappeared, and are now set to remain in Mojave in perpetuity.
If you’ve updated to macOS 10.14.4, you’ve already installed supporting software to use your Mac in a classroom. Was this an error in the update? What does it do?
Have you updated to 10.14.4? Checked your login keychain? You may see a new security certificate there. What’s it for?
Can you sign AppleScript apps in Script Editor? Is there a better tool? What’s the best way to sign a command tool developed in Xcode?