On: MacOS 10.15: Slow by Design (2020)

[lapcat]

> Are you sure?

Yes. This can be verified with a packet trace.

It can also be verified visually. Download a notarized stapled app, disable your internet connection, and launch the app. You'll see a Gatekeeper dialog like this:

"Safari downloaded this file on [date]. As of [date], Apple checked it for malicious software and none was detected."

Notice "As of [date]".

Then press Cancel, re-enable your internet, and launch the app again.

This time "As of [date]" is gone! It's phoned home to check.

[mike_hearn → lapcat]

That's interesting to know, thanks. I wonder if they changed this, or if Quinn was not aware of exactly how it was used when he gave his answer.

[lapcat → mike_hearn]

Well, notarization was optional for most Mac apps on macOS 10.14 Mojave but required on 10.15 Catalina.