PRESS RELEASE

Columbia, MD – February 27, 2012 -- Sourcefire, Inc. (Nasdaq: FIRE), a leader in intelligent cybersecurity solutions, today announced the first Next-Generation Intrusion Prevention System (NGIPS) to provide fully integrated and intelligent application control. Sourcefire', which pioneered NGIPS in 2003, is extending its Agile Security™ vision by providing the world’s first NGIPS to incorporate real-time contextual awareness and full-stack visibility, together with intelligent security automation and granular application control.

Sourcefire’s application control enables companies to control access to thousands of applications and provides custom detection and control for homegrown applications. It equips customers with decisive threat-mitigating controls to reduce attack surface and to enforce use policies. With application detection and control in a universal NGIPS platform, Sourcefire customers can easily construct integrated security policies that balance access controls with robust threat prevention to comprehensively address application-layer risks.

Sourcefire NGIPS is built on the high-performance FirePOWER™ platform. In addition to application control, features in the latest NGIPS release include FireSIGHT™ contextual awareness and automation and enhanced reporting.

FireSIGHT provides:

Enhanced discovery of thousands of applications, including client-side applications, mobile browser versions and virtual machines Real-time visibility into changing hosts, apps, users and network infrastructure Network mapping and host profiling Network and Layer 7 behavior analysis and anomaly detection Automatic impact assessment of security events to filter out “noise” Automatic recommended policies based on contextual awareness

Enhanced Application Reporting includes:

Application statistics providing visibility into usage by risk, by hosts, by bandwidth consumption, by browser version, and so on Automatic email distribution of reports The ability to easily create tailored reports by providing input modifiers to report templates at run time to drill down on subsets of data

“The battle for network security is based on the concept of information superiority, in which two of the most critical tenets are visibility and control,” said Martin Roesch, founder and CTO of Sourcefire. “A significant obstacle to establishing information superiority is the rapid pace of change – both within the IT environment and the broader threat landscape. Sourcefire offers the first true defense-in-depth solution to these challenges. While other vendors have a framework, our real-world solution has multiple components that work in tandem to allow us to first ‘see it’ and then ‘control it’ – and by so doing, gain the information superiority advantage.”

Sourcefire NGIPS and application control license are available now on select FirePOWER platforms. For more information, visit our network security page or download the Gartner report “Defining Next-Generation Network Intrusion Prevention Systems,” or register for one of three informative webinars.

Visit Sourcefire at booth #2552 at RSA Conference in San Francisco from Feb. 27-March 1, 2012.

About Sourcefire Sourcefire, Inc. (Nasdaq:FIRE), a world leader in intelligent cybersecurity solutions, is transforming the way global large- to mid-size organizations and government agencies manage and minimize network security risks. With solutions from a next-generation network security platform to advanced malware protection, Sourcefire provides customers with Agile SecurityTM that is as dynamic as the real world it protects and the attackers against which it defends. Trusted for more than 10 years, Sourcefire has been consistently recognized for its innovation and industry leadership with numerous patents, world-class research, and award-winning technology. Today, the name Sourcefire has grown synonymous with innovation, security intelligence and agile end-to-end security protection. For more information about Sourcefire, please visit www.sourcefire.com.