For companies looking to improve cloud computing and desktop security, they may want to start looking inward, according to a story by the Wall Street Journal.

"The security gap is end users," Kevin Mandia, chief executive of security firm Mandiant Corp, told the news source. The story said the majority of corporate security breaches Mandia's firm is investigating involves hackers who have gained access to networks by exploiting employees who don't know any better.

The Wall Street Journal said there is more opportunity than even for employees to unknowingly create problems by clicking on emails that have viruses, allowing hackers to get past firewalls. In addition, the increasing number of employees who use mobile devices to access their companies' networks are compounding security concerns.

Addressing these vulnerabilities is a difficult and complex issue that will require employees to become more familiar with safe web use, and IT professionals to think more innovatively. As a way to better protect corporate systems, some organizations have begun trialing new tools that are designed to monitor and track employee use on company networks, the news source reported.

According to the Ponemon Institute, 59 percent of companies said they have had two or more desktop security breaches via the internet in the past 12 months and 10 percent of companies are not sure. The survey found that 41 percent of respondents report that financial losses relating to security breaches could be in the area of $500,000.