Sourcefire Inc., a Columbia-based provider of cybersecurity technology to government and commercial clients, said its CEO retired earlier this week after taking a medical leave to be treated for colon cancer.
John C. Burris, 57, led Sourcefire since 2008. Company officials credited Burris, a former top executive with Citrix Systems, Lucent Technologies and AT&T, with helping it achieve profitability and expand its product offerings. Burris had been on medical leave since July.


