Defining <A HREF="http://www.pcworld.com/businesscenter/article/137177/whats_the_worst_corporate_security_threats.html">the most ominous security threat to businesses today</A> isn't easy; apparently there are just too many to choose from.

At The Security Standard conference held in Chicago, industry executives and experts took the stage to discuss the current threat landscape. Decade-old concerns about external threats such as malware infecting a network or intruders causing a data breach were still hot topics, joined by newer concerns about the insider threat.