PRESS RELEASE

Columbia, MD – December 5, 2011 -- Sourcefire, Inc. (Nasdaq: FIRE), a leader in intelligent cybersecurity solutions, today announced its latest innovation, the Sourcefire Next-Generation Firewall (NGFW). Building on Sourcefire’s Next-Generation IPS (NGIPS) technology leadership and leveraging its high-performance FirePOWER™ platform, the Sourcefire Next-Generation Firewall combines the world’s most powerful IPS threat prevention, integrated application control and firewall capabilities in a high-performance security appliance. By combining NGIPS and NGFW, Sourcefire has created the first enterprise firewall solution with comprehensive enterprise visibility, adaptive security and advanced threat protection.

"Threats continue to advance, and network security defenses must evolve to become effective against advanced targeted threats. Enterprises should require vendors to add next-generation intrusion prevention features to network security products," said Greg Young, research vice president, Gartner1. "Mainstream enterprises over time will refresh existing next-generation firewall deployments with future versions with next-generation network IPS capabilities."

Applying its Agile Security™ vision to the emerging NGFW market, Sourcefire is delivering a context-aware and adaptive NGFW solution to offer its customers superior network protection and control without compromise. The Sourcefire Next-Generation Firewall provides this increased protection by combining the ability to identify and provide granular control for more than 1,000 applications with unprecedented visibility, intelligent automation and industry-best threat prevention effectiveness. These capabilities are all backed by the elite Sourcefire Vulnerability Research Team (VRT™) and the company’s collective security intelligence.

Universal Network Security Platform

Sourcefire leverages a single-pass engine that delivers deep inspection while maintaining peak performance. The FirePOWER platform can be configured at the customer’s discretion as an NGIPS, an NGIPS with application control or an NGFW, providing the customer ultimate flexibility to deploy appliances to match their infrastructure needs and scale over time.

Total Visibility

Using its patented FireSIGHT™ technology, Sourcefire delivers increased visibility into applications, users, content, hosts, attacks, vulnerabilities, behavior and changes in a user’s environment. It then correlates this information with user identity and reputation intelligence to assess risks and threat impact to make more precise enforcement decisions.

Intelligent Automation

Unlike existing solutions, the Sourcefire Next-Generation Firewall employs intelligent security automation to increase the agility of protection efforts that can keep pace with constantly changing environments. This is accomplished by the Sourcefire NGFW through comprehensive contextual awareness and collective threat intelligence that result in more meaningful policy recommendations and automated adjustments to a customer’s defense in real time. It also allows security teams to optimize remediation efforts by reducing actionable alerts and filtering out events that do not affect the particular user’s environment.

Control Without Compromise

Sourcefire NGFW provides control without compromising threat prevention. Based on independent testing, the solution delivers best-of-class throughput performance and advanced threat detection with unsurpassed blocking effectiveness. As with other Sourcefire solutions, the NGFW allows users to tailor and customize defenses and policies to their specific environment.

“As enterprises seek to increase their protection efforts they are looking for solutions that offer the agility to be effective in the face of modern threats,” said Martin Roesch, Chief Technology Officer at Sourcefire. “Other NGFW solutions force customers to make tradeoffs between control, prevention, performance and manageability. The Sourcefire Next-Generation Firewall includes our industry-leading NGIPS and provides the user the power and confidence to prevent and respond to complex threats with the granular control required today.”

For more information on the Sourcefire Next-Generation Firewall, register for one of three webinars:

Tuesday, December 13 at 9 a.m. EST / 2 p.m. GMT https://www3.gotomeeting.com/register/333138022 Tuesday, December 13 at 2 p.m. EST / 11a.m. PST https://www3.gotomeeting.com/register/836015638 Wednesday, December 14 at 10 a.m. Singapore / 11 a.m. Tokyo / 1 p.m. Sydney https://www3.gotomeeting.com/register/544870262

Product information is also available at http://sourcefire.com/ngfw.

About Sourcefire Sourcefire, Inc. (Nasdaq:FIRE), a world leader in intelligent cybersecurity solutions, is transforming the way global mid- to large-size organizations and government agencies manage and minimize network security risks. With solutions from the network to the endpoint, 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 dozens of 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.