Sourcefire, Inc. (Nasdaq: FIRE), a leader in intelligent cybersecurity solutions, today announced that it will release its fourth quarter and full year 2011 financial results after the market closes on Tuesday, February 21, 2012. That evening at 5:00 p.m. Eastern Time, Sourcefire will host a conference call to review these results. A listen-only web cast of the session will be available at www.sourcefire.com/investors. Those wishing to participate in the live session should use the following dial-in numbers:

Calling from the United States or Canada: 877-712-7037
Calling from other countries: 253-237-1122
Conference ID number: 41458615

An online replay will be available at www.sourcefire.com/investors following the completion of the live call and will remain available for at least 90 days.

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.

Sourcefire, the Sourcefire logo, Snort, the Snort and Pig logo, ClamAV, Immunet and certain other trademarks and logos are trademarks or registered trademarks of Sourcefire, Inc. in the United States and other countries. Other company, product and service names may be trademarks or service marks of others.

Media Contact:
Sourcefire, Inc.
Jennifer Leggio, 650-260-4025
jleggio@sourcefire.com
or
Investor Contact:
ICR, Inc
Staci Mortenson, 203-682-8273
Staci.mortenson@icrinc.com