About 6,600 police documents are said to have been compromised, including interrogation reports, statements from victims of crime, and classified locations of automatic license plate readers.
Coincidentally, as news of the police data leakage was announced it was also revealed that almost 15,000 pieces of personal information about students was leaked onto the internet from a PC belonging to a high school teacher in Ichinomiya. The 43-year-old teacher, who was running the Share P2P file-sharing program, had also been compiling a list of retired Air Self-Defense Force officers on behalf of his mother who had worked at their base in Kagamihara. This information also leaked onto the internet.
These are not the first occasions that malware has taken advantage of peer-to-peer file-sharing networks to steal information:
- In May 2006, a virus had leaked power plant secrets via Winny for the second time in four months.
- The previous month, a Japanese anti-virus company admitted that internal documents and customer information had been leaked after one of its employees failed to install anti-virus software.
- Earlier in 2006, information about Japanese sex victims was leaked by a virus after a police investigator's computer had been infected.
- In June 2005, nuclear power plant secrets had been leaked from a computer belonging to an employee of Mitsubishi Electric Plant Engineering.
- The police force in Kyoto, Japan, were left with red faces after a virus spread information about their "most wanted" suspect list in April 2004.
