Relentless attacks by viruses, web worms and malicious hackers are forcing companies to react faster than ever to computer security problems. The rapidly narrowing time between the discovery of a vulnerability and its exploitation by computer vandals leaves companies little time to react. Some are turning to tools that work like anti-virus scanners and regularly comb networks for vulnerabilities. If left open these holes could be used as a conduit by malicious hackers or rogue programs seeking to steal data, delete it or wreak other damage. Full Story