Sergei "Fly" Vovnenko, a Russo-Ukrainian cybercrook who stalked and harassed security journalist Brian Krebs — at one point conspiring to get him arrested by sending him heroin via the Silk Road — has been arrested. According to Krebs, Vovnenko was a prolific credit-card crook, specializing in dumps of stolen Italian credit-card numbers, and faces charges in Italy and the USA. Krebs documents how Vovnenko's identity came to light because he installed a keylogger on his own wife's computer, which subsequently leaked her real name, which led to him.
According to a trusted source in the security community, that email account was somehow compromised last year. The source said the account was full of emailed reports from a keylogging device that was tied to another email address — email@example.com (according to Google, firstname.lastname@example.org is the recovery email address for email@example.com).
Those keylog reports contained some valuable information, and indicated that Fly had planted a keylogger on his wife Irina's computer. On several occasions, those emails show Fly's wife typed in her Gmail address, which included her real first and last name — Irina Gumenyuk.
Later, Gumenyuk would change the surname on her various social networking profiles online to Vovnenko. She even mentioned her husband by name several times in emails to friends, identifying him as 28-year-old "Sergei Vovnenko". Payment information contained in those emails — including shipping and other account information — put the happy couple and their young son in Naples, Italy.