A leading seller of software for investigating computer crimes <A HREF="http://news.zdnet.com/2100-1009_22-6136165.html?tag=nl.r23660">has reached a settlement with federal regulators,</A> after a hacking incident exposed data on thousands of its customers. Under a settlement with the Federal Trade Commission announced on Thursday, Guidance Software must put into place a "comprehensive information-security program" and undergo audits by independent, third-party security professionals once every two years for the next decade.