: Official installers are digitally signed by Apple, ensuring the software hasn't been tampered with. The Best Way to Get Catalina (10.15)
If your Mac supports it, consider instead — Catalina stopped receiving security updates in November 2022 . Running it connected to the internet is a security risk. : Official installers are digitally signed by Apple,
shasum -a 256 "/Applications/Install macOS Catalina.app/Contents/SharedSupport/InstallInfo.plist" as they may contain malware.
Catalina is the last macOS to support legacy 32-bit apps before the move to strictly 64-bit architecture [2]. Step 1: Securely Download the macOS Catalina DMG File : Official installers are digitally signed by Apple,
Downloading from the official source is crucial for security. Do not download DMG files from unknown third-party websites, as they may contain malware.