According to the U.S Patent and Trade Office Abstract for patent number 6,971,019, the patent is for a virus-detection system that uses a histogram to detect the presence of a computer virus in a computer file.
A histogram typically involves some form of frequency-distribution analysis. In the case of Symantec's patented histogram-based malicious code-detection technology, a prioritized count of instructions and behaviors is made that identifies code as it moves across a network.
Analysis of that movement is supposed to help make a determination as to whether there is a threat on the network.
"Without this technology, it would be extremely difficult to identify such threats without also significantly impacting performance," Nachenberg said in a statement.
Nachenberg has been awarded seventeen patents in IT security since 1997.
This article was first published on InternetNews.com.