Did you think it was only old Mac OS X affected by the Let’s Encrypt certificate expiry problem? No, it’s Safari wherever you can use it. Here’s how to deal with it.
certificates
If you’re still running El Capitan, or any version of Mac OS X prior to 10.12.1, then you’re […]
Nine months ago, Apple undertook to make changes in the way in which macOS checks its OCSP service for certificate revocations. Has it changed anything yet?
From the start of voluntary code signing in 2007, defences against malware in macOS have changed dramatically. Here’s an overview of what has happened.
Why does it take 2 years to realise that macOS has been checking signing certificate validity online?
How macOS checks executable code before it’s loaded and run, in macOS 10.15 and 11.0. Covering integrity checks using hashes, and validity of the signing certificate, on Intel and ARM.
Although most were worried about Apple’s failure to deliver upgrades to Big Sur, the most serious problem left many users unable to launch any apps.
If you have no other option and can be certain there’s no danger in doing so, you can remove a signed app’s signature. But it may not be so simple.
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.
The benefits of code signing for Mac users explained. How certificates are revoked, and what happens when they are. And there’s more to signatures than just the certificate.
