When macOS won’t let you open an app or other software because it warns that it’s (possibly) malware, here’s how to check the signatures.
A new Universal App version of Signet, which checks signatures on apps and other bundles.
A future version of macOS (?10.16) will check code signatures more thoroughly than at present. Here’s what to do to start preparing for that.
Validating signatures isn’t straightforward. GUI apps are limited, and command tools confusing and prone to user error.
Now can check apps (bundles with the extension .app) to determine whether they’re notarized, from Apple, App Store, etc.
What does an error -67030 mean? How does one signing error lead to another? Helpful detail for interpreting results from checking signatures.
Auto-update, text sizing, and proper Build numbers make for a worthwhile update.
Crawls selected folders checking all app signatures. Reports all signatures which have problems, including unsigned apps.
This page is for your support questions and comments on my free utility Signet, for checking app signature […]
The differences between a full Gatekeeper check, an AMFI check for integrity, and a normal app open, and why signature errors can be tolerated.