NEWS/400 GOES AFTER GERSTNER'S CREDIT CARD NUMBER IN ETHICAL HACK With more and more businesses moving at least part of their operations onto the Web, Internet security is a hot topic. In surveys conducted in the past three years by varying organizations, a consistent 40 percent of companies polled reported breaches of information security in the preceding 12 months. The total estimated losses from these attacks have been reported as anywhere from $800 million to $300 billion. At least half of these attacks were internal, but a significant number originated on vulnerable Web sites.