Who would have guessed 15 years ago that Martin Roesch's free computer network-security program would turn into a $2.7 billion deal?
Roesch used the no-cost software he developed in 1998 — called Snort because it sniffs out trouble — as the foundation for Columbia cybersecurity firm Sourcefire Inc. On Tuesday, the company announced that it had agreed to sell itself to tech giant Cisco Systems Inc.
The price speaks to the business potential in developing good defenses as high-profile hacking of corporations and government agencies mounts. It's also a recognition of Sourcefire's reputation.
The company's share of the global market for one type of cybersecurity —...