The District of Columbia on Tuesday (Nov. 29) became the latest to sue Sony BMG over the release of music CDs that installed spyware on users' computers and made them more vulnerable to hackers.

The District of Columbia on Tuesday (Nov. 29) became the latest to sue Sony BMG over the release of music CDs that installed spyware on users' computers and made them more vulnerable to hackers.

D.C. resident Nicholas Xanthakos sued the music company under the district's Consumer Protection and Procedures Act, which allows a resident to act as a private attorney general and seek relief on behalf of the general public. Attorneys for Xanthakos said the suit mainly sought to prevent Sony BMG from issuing the CDs, which already have been pulled from the market.

The state of Texas and consumer activist group Electronic Frontier Foundation already have sued Sony BMG over the software, which irreversibly alters the core Windows operating system.