Drive-by downloads of Install macOS Monterey

Christopher Chavez chrischavez at
Tue Mar 8 21:09:04 UTC 2022

Sent: Wednesday, February 23, 2022 at 8:35 PM
From: "Ryan Schmidt"
> I noticed copies of the Install macOS Monterey application on both the Catalina and Big Sur MacPorts buildbot build machines. I've of course never requested the download of these installers on those systems and they are configured not to update automatically and not to download new updates automatically. If you have machines running Catalina or Big Sur, you might check to see if you too have an unwanted Install macOS app in your Applications folder that you can delete to save space.

If the installer is deleted, it may eventually be downloaded again. To prevent this, one workaround suggested by is to create an empty folder 'Install macOS' and lock it (either from "Get Info", or from the command line using `chflags uchg '/Applications/Install macOS'`).

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