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Apple explains how the new app called “Find My”

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Published on Jun 06, 2019

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Apple explains how the new app called “Find My”

One of the most important changes in iOS 13, and macOS 10.15 is the union of the Find my friends app and Find my iPhone.

The new app converts all the Apple devices in the receivers of Bluetooth signals, enabling you to find a device offline when it is close enough to any other Apple device. Now, the Cupertino company offers some details on the security features of the app Is.

Here's how Apple describes the support of location offline in the new app Find My:

Locate a device even if the device is not connected to Wi-Fi or the cellular network using the position of crowd-sourcing. When you mark the device as missing, and another Apple device is near, the latter is able to detect the Bluetooth signal of your device and report its location. It is completely anonymous and encrypted end-to-end, then the privacy of everyone is protected.

On the stage of the WWDC 2019, Craig Federighi explained that the entire interaction involved in the offline mode to Find My is “encrypted end-to-end and anonymous“.

One of the more interesting tidbits is that to run the search offline devices iOS 13, you need at least two Apple products. In substance, the second Apple product is the one that will contain the key to decode the location of the first device is offline:

Apple has broken that element relative to the privacy, explaining how its system is “encrypted and anonymous” avoids to leak location data, even if the devices transmit a Bluetooth signal specially designed to allow monitoring of the device.

The solution to this paradox, it turns out, is a trick that requires you to own at least two Apple devices. Each device is “near” continuously generates a key that is used to encrypt and upload the location information, but only to another Apple device in the possession of the user who will own the key to decrypt the location.

In addition, the encryption of Find My also denies Apple the opportunity to learn the position of a user. This is actually a huge improvement compared to the individual applications such as Find my iPhone and Find my friends.

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