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It is often claimed that your personal data is safe because it has been anonymised, but computer scientists know how easy it is to re-identify the individual by matching the data against other public datasets. Anonymised detailed personal data is a contradiction - a broken promise....
In 1977 or thereabouts a collection of scientists huddled around a secret radio receiver in the US desert. This was the start of GPS, Glonass, Gallileo and the whole navigation industry. But how does this technology work? And are there situations when it does not work?
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