What your Mac sends to Apple and how to control it
macOS includes several built-in mechanisms that send diagnostic, usage, and crash data back to Apple. While these features help improve the operating system, they also raise legitimate privacy concerns for many users.
By default, macOS may send the following types of information:
LittleSnitch - Network Monitor for Mac gives you visibility into exactly which processes are sending data to Apple domains. You can create specific rules to block or allow telemetry connections based on your privacy preferences.
Understanding and controlling telemetry is one of the most practical steps Mac users can take to protect their privacy in 2026.