sudo chflags schg /etc/hosts To unlock later (if you need to update the list):

The most effective, lightweight, and time-tested method to prevent Adobe from phoning home is editing the . However, many guides online are outdated, use incomplete IP blocks, or fail because Adobe constantly updates its endpoint URLs.

sudo chflags noschg /etc/hosts Adobe is moving toward hardcoded DNS over HTTPS (DoH) in Creative Cloud 2025+. This means eventually, Adobe apps may ignore your Hosts file entirely. However, as of the latest macOS Sequoia and Adobe 2025 releases, the Hosts file remains the most efficient, low-level, and reliable method.

sudo launchctl unload /Library/LaunchDaemons/com.adobe.GenuineIntegrity.plist sudo mv /Library/LaunchDaemons/com.adobe.GenuineIntegrity.plist /Library/LaunchDaemons/com.adobe.GenuineIntegrity.plist.bak Some modern malware (and Adobe updaters) try to rewrite your Hosts file. To make your blocklist permanent, lock the file:

By using the provided above, specifically tailored for Mac’s Unix kernel, you are running the optimal configuration available today.