Advertising ID

An advertising ID is a unique user ID assigned to a mobile device (smart phone, tablet computer), or operating environment, to help advertising services personalize their offers.[1] It can be sent to advertisers and other third parties which can use this unique ID to track the user's movements, habits, and usages of applications.[2] There is a potential for such technology to replace magic cookies.[3]

Implementations
  • Apple calls their advertising ID the "Identifier for Advertisers" (IDFA). Beginning with its iOS 14.5 software update, Apple will allow its users to choose whether to allow apps to track their IDFA.[4]
  • Google calls their "Google Advertising ID" (GAID).
  • Microsoft uses a similar technology, also called Advertising ID, that is generated for each device and user. In Windows 10 & 11, it can be turned off in the settings panel.[5]

See also
  • Ad-ID – Technical standard used to centrally manage advertising assets in the supply chain

References
  1. "2016 Mobile App Marketing Glossary". Interactive Advertising Bureau. Retrieved November 16, 2022.
  2. Tamblyn, Thomas (October 19, 2017). "You can effectively track anyone, anywhere just by the adverts they receive". Huffington Post.
  3. Edwards, Jim (January 27, 2014). "Google's new 'advertising ID' is now live and tracking Android phones — This is what it looks like". Business Insider. Retrieved 29 March 2021.
  4. Nguyen, Joanna Stern and Nicole (2021-04-07). "iPhone Apps Asking to Track You? Answers to Your iOS 14.5 Privacy Questions". Wall Street Journal. ISSN 0099-9660. Retrieved 2021-04-11.
  5. "General privacy settings in Windows". Microsoft Support.
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