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      • ๐ŸŽญChapter 1 : Digital Identities
        • What is identity?
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On this page
  • What are mobile device identifiers?
  • What is IMEI (International Mobile Equipment Identity)?
  • What is MAC address (Media Access Control address)?
  • What is AdID (Advertising ID)?
  • What is UDID (Unique Device Identifier)?
  • How are Phone numbers used in tracking?

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  1. Privacy Engineering Field Guide Season 1
  2. Chapter 5 : Mobile Apps and Privacy

Mobile Device Identifiers

PreviousSoftware Development Kits (SDKs)NextBring Your Own Device (BYOD)

Last updated 2 years ago

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What are mobile device identifiers?

Mobile phones use several unique identifiers to identify and track individual devices.

The use of unique identifiers on mobile devices can pose significant privacy risks, particularly if the data is collected without the user's knowledge or consent.

What is IMEI (International Mobile Equipment Identity)?

The 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.

What is MAC address (Media Access Control address)?

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.

What is AdID (Advertising ID)?

AdID is a unique identifier assigned to a mobile device by the operating system or by an advertising network.

It is used to track a user's activity across different apps and to deliver targeted advertising.

What is UDID (Unique Device Identifier)?

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.

The privacy risks associated with UDID include the possibility of the identifier being used to track a user's activity across different apps and to associate the user's activity with other personal information.

How are Phone numbers used in tracking?

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.

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In the end, they agreed to go to D'adana as Master Thalia ordered. As they boarded the starfighter, Red felt a sense of purpose. She had gained new powers, and with them, she would continue to fight until the Shadow Matter was eradicated for good. The adventure had only just begun, and Red was ready for whatever lay ahead. - Journals of Order of Epoch
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