and described himself as a Canadian resident who divorced 15 years prior and had a son living in Paris. On July 26, 2010, it was reported by the media that Passport Canada, upon conducting a review, revoked the travel document issued to Christopher Metsos. Late in July 2010, Russian political commentator Yulia Latynina voiced a theory that "Christopher Metsos" might have been a double agent and was probably now in the US; she did not cite any sources. A court verdict read in Moscow on June 27, 2011, identified "Metsos" as Pavel Kapustin (), a Russian espionage professional, who was exfiltrated upon being released on bail in Cyprus. Alexey Karetnikov On July 13, 2010, the US government disclosed that a 12th, previously undisclosed, person was being held in custody and was said by the media to be implicated in the same federal probe. Later that day, the person was identified as Alexey Karetnikov, a 23-year-old former entry-level software tester at Microsoft, who was apprehended on June 28, 2010, in Seattle. He was charged with immigration violations and consented to deportation in lieu of further court proceedings; he was sent to Russia on July 13, 2010. Law enforcement officials said on the day of his deportation that Karetnikov had no direct ties to the other deported persons, although his name came up in the broader investigation. On July 22, 2010, Newsweek published the comments of Karetnikov's fellow dormitory resident, who said that Karetnikov impressed him as "very oily" and "very Russian"; according to the anonymous source, Karetnikov spoke surprisingly poor English but was "sophisticated" and knew a lot about Microsoft. Communication techniques The Russian agents used private Wi-Fi networks, flash memory sticks and text messages concealed in graphical images to exchange information. Custom steganographic software developed in Moscow was used where concealed messages were inserted into otherwise innocuous files. This program was initiated by using the Control-Alt-E keys and entering a 27-character password, which the FBI found written down. Coded bursts of data sent by a short wave radio transmitter were also used. Other methods included employing invisible ink and exchanging identical bags in public places. In January 2010, Anna Chapman used her laptop at a New York coffee shop on 47th Street to electronically transfer data to a Russian official driving by. Two months later, Chapman used a private Wi-Fi network, possibly at a Barnes & Noble store on Greenwich