Searching for geotags in dark net markets

Three years ago, Harvard student Eldo Kim emailed a false bomb threat to campus administration, seeking to avoid taking final exams. In order to evade detection, Eldo sent the email through a series of nominally anonymous services: the email originated from a self-deleting email address provided by the service Guerrilla Mail, which he accessed via the well-known anonymity software Tor. Yet within two days Eldo was apprehended by the FBI. His fatal flaw: accessing Tor through Harvard’s wireless network. …


Paul Lisker/Michael Rose

Paul and Michael are Harvard students of CS and Government with a passion for privacy. Find out more about them at and

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