From the nothing-to-worry-about-here dept

Meanwhile, a Carnegie Mellon University computer scientist named Alessandro Acquisti has taken photographs of random strangers on a college campus and used facial recognition technology to “re-identify” roughly a third of them from a rich trove of publicly available photographs on Facebook. Even more remarkably, so much personal data now lies scattered online that he was able to glean their Social Security numbers in about a fourth of the case.

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