Microsoft's Virus Bounties Produce Leads But No Arrests

A trio of bounties Microsoft Corp. placed on the heads of virus writers has generated a variety of investigative leads, but still no arrests, a top security official from the software giant said. In November, Microsoft created a $5 million fund to pay ordinary computer users for tips leading to the arrest and prosecution of the creators of computer viruses and worms that use its ubiquitous Windows operating system to wreak havoc online.