Third-party DMGs can be modified to include keyloggers, adware, or rootkits.
: The most secure method is via the macOS Catalina App Store link . This downloads a "Install macOS Catalina.app" file to your Applications folder, which you can then convert to a DMG if needed.
shasum -a 256 /path/to/Install\ macOS\ Catalina.app.dmg download macos catalina 10157 dmg file better
If you are on a Windows PC and cannot use the methods above, you may look for mirrors on sites like Archive.org .
Click to download the installer directly to your Applications folder. 3. Creating a Bootable USB from the DMG Third-party DMGs can be modified to include keyloggers,
To see a list of available operating systems on Apple's servers, type the following command and press Enter: softwareupdate --list-full-installers Use code with caution. Look for version 10.15.7 in the generated list.
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Once the files download, run the BuildInstallMedia script included in the folder to generate the installer. ⚠️ Important Notes