On 9 March 2005, a 38-year-old Greek electrical engineer named Costas Tsalikidis was found hanged in his Athens loft apartment, an apparent suicide. It would prove to be merely the first public news of a scandal that would roil Greece for months.
The next day, the prime minister of Greece was told that his cellphone was being bugged, as were those of the mayor of Athens and at least 100 other high-ranking dignitaries, including an employee of the U.S. embassy.
Even before Tsalikidis's death, investigators had found rogue software installed on the Vodafone Greece phone network by parties unknown. ...the Athens affair stands out because it may have involved state secrets, and it targeted individuals—a combination that, if it had ever occurred before, was not disclosed publicly.
Given the ease with which the conversations could have been recorded, it is generally believed that they were. But no one has found any recordings, and we don't know how many of the calls were recorded, or even listened to, by the perpetrators. ... We still don't know who committed this crime. (much more)