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Many Top iPhone Apps Collect Unique Device ID

An anonymous reader writes "It looks like iPhone users are not immune to the types of data leaks recently discovered on the Android platform. Researchers looked at the top free applications available from the App Store and discovered that '68% of these applications were transmitting UDIDs to servers under the application vendor's control each time the application is launched.' The iPhone's Unique Device ID, or UDID, cannot be changed, nor can its transmission be disabled by the user. The full paper is available in PDF form."

6 of 194 comments (clear)

  1. If you read the paper... by layertwo · · Score: 3, Informative

    "We also confirmed that some applications are able to link the UDID to a real-world identity."

  2. Re:What's That? by TheGeneration · · Score: 5, Informative

    The UID identifies the iPhone within XCode. It enables things like authentication without passwords for (trivial) applications. For example if I have an app with profiles, and that app is only usable on the iPhone, there is no need for a password or login, I can just use the UID.

    Big whoop.

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    The Generation
    I'd say something witty here, but I'm not that bright.
  3. it's all good by somewhere+in+AU · · Score: 3, Informative

    Unique device ID doesn't violate privacy whatsoever since there is no link to your name, address, etc..

    It DOES however provide a great way of ensuring "trial" or "lite" apps handled by a server and doing what you intended in say limiting results or whatever.. it also is good for internal logs since you can refine your app by looking at how the app is used, both overall as well as individual patterns.

    You don't need GPS, personal or any other information at all to provide LOTS of benefits and an IMPROVED app once you have a access to a unique ID that doesn't involve registering username or whatever as annoying websites do.

    I think a credible business would disclose in an open way what server transactions are involved on a per-app basis and with our new server suite being rolled out I know we will provide a web page per app detailing this so it's all open and above board and the benefits given.

  4. Re:What's That? by Anonymous Coward · · Score: 3, Informative

    The summary was specific to the top FREE apps. What do you expect they are going to refund? Why are we discussing locking it to one device? They are already free for all your devices. Its about tracking, pure and simple.

  5. Re:UDID does not identify a user by TrancePhreak · · Score: 3, Informative

    The UDID is pretty long, doesn't really make for a good user name. This is an example UDID: 2b6f0cc904d137be2e1730235f5664094b831186

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    -]Phreak Out[-
  6. Pandora by Culture20 · · Score: 5, Informative

    Yeah, I noticed that with Pandora after my friend sold me his old phone (he had it wiped first). I downloaded Pandora and started screwing around with his stations because I thought they were just default stations Pandora gave me. They were basing access on the UDID.