Mobile Device Identifiers
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Mobile phones use several unique identifiers to identify and track individual devices.
The IMEI is a unique 15-digit number that identifies a specific mobile device. It is used by mobile network operators to identify and track mobile devices on their networks.
The privacy risks associated with the IMEI include the possibility of the number being used to track the location of the device or to associate it with other personal information.
The MAC address is a unique identifier assigned to a device's network interface controller. It is used to identify devices on a local network and can be used by marketers and advertisers to track a device's activity across different networks.
AdID is a unique identifier assigned to a mobile device by the operating system or by an advertising network.
UDID is a unique identifier assigned to iOS devices. It is used by app developers to track user activity within their apps and to deliver personalized content.
A mobile device's phone number is often used as a unique identifier for the device. It can be used to identify and track the device's activity and location, and it can also be associated with other personal information.