With macOS Catalina, there are enhanced security features to better protect macOS against tampering, help ensure that the apps you use are safe, and give you greater control over access to your data. And it’s even easier to find your Mac if it’s lost or stolen.
The new Find My app combines Find My iPhone and Find My Friends into a single, easy-to-use app on Mac, iPadOS, and iOS devices. Find My can help you locate a missing Mac — even if it’s offline and sleeping — by sending out Bluetooth signals that can be detected by Apple devices in use nearby. These devices then relay the detected location of your Mac to iCloud so you can locate it in the Find My app.
It’s all anonymous and end-to-end encrypted so no one, including Apple, knows the identity of any reporting device. And because the reporting happens silently using tiny bits of data that piggyback on existing network traffic, there’s no need to worry about your battery life, your data usage, or your privacy.