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  • Computer scientists in the US have discovered ways to "re-identify" the names
    of people included in supposedly anonymous datasets.

    In one example, a movie rental company released an anonymous list of
    film-ratings taken from its 500,000 subscribers. Using a statistical "de-anonymisation"
    technique, the academics were able to identify individuals and their film
    preferences.

    The discovery raises concerns about how safe it is to release personal
    information – such as medical records or mobile phone data – even if details
    such as names or national insurance numbers have been removed. There are fears
    the information could be accessed by criminals.

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