Yahoo Japan leaks 4.7 mn customers' info?

The National Police Agency announced today that it has obtained the customer details for 4.7 million subscribers to the Yahoo!BB broadband service. The data were apparently contained on a DVD-ROM confiscated from a 61-year-old Hokkaido resident who had, under the guise of seeking an "investment" from the Softbank group that runs Yahoo!BB, attempted to use the data to blackmail the company. The police indicate that they have confirmed the data is genuine. No credit-card information was apparently contained on the disk.

Yahoo!BB's subscribers currently number 3.82 million, so the theory is logically that the DVD may contain information on both current and former subscribers.

Softbank BB, the operating company, is scheduled to hold a press conference this evening in Tokyo.

[Via ITmedia (Japanese)]