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“Network Effect” Leveraging more than 40,000 Barracuda Spam Firewalls across the Internet Augments “Zero-Hour” Protection

Basingstoke, UK - 3July, 2007 – Barracuda Networks, Inc., a leading provider of network security appliances, today announced Barracuda Real-Time Protection, a set of technologies that enable the Barracuda Spam Firewall to immediately block the latest virus, spyware, and other malware attacks as they emerge. Barracuda Real-Time Protection provides customers with industry-leading response times to email-borne threats by adding a third layer of antivirus protection to the Barracuda Spam Firewall.

“With the world’s largest installed base of more than 40,000 Barracuda Spam Firewalls in more than 80 countries, Barracuda Networks is uniquely positioned to detect early trends in email-borne threats” said Stephen Pao, vice president of product management for Barracuda Networks. “By combining this early detection capability with real-time response, the Barracuda Spam Firewall delivers industry-leading virus and malware protection to organisations of all sizes.”

Unique Message Fingerprints Lead to Zero-Hour Identification and Blocking
Unlike traditional antivirus solutions which perform analysis against data stored on a single system, Barracuda Real-Time Protection is based on data collected from thousands of global honeypots and Barracuda Spam Firewalls across the Internet. This data consists of binary signatures, or ‘fingerprints,’ for message components such as message bodies, email attachments and inline images. When unknown fingerprints are detected, the Barracuda Spam Firewall submits these fingerprints in real-time to Barracuda Central, an advanced technology centre where engineers monitor the Internet for the latest threats and deploy solutions 24x7 to stop them.

Once Barracuda Central engineers identify a potential virus or malware outbreak based on the frequency, diversity of sources and the metadata about the message itself, Barracuda Central validates the hypothesis by collecting samples of suspect emails from Barracuda Spam Firewalls around the world that have opted-in to data collection. Immediately upon virus or malware classification, Barracuda Central responds to any Barracuda Spam Firewalls submitting the corresponding fingerprints with an instruction to immediately block the message, thus stopping the attack in real time.

“While automatic Energize Updates have always kept the Barracuda Spam Firewall ahead of massive threat proliferation, Barracuda Real-Time Protection adds an additional level of security during the earliest stages of a new outbreak,” said Pao.

After identifying new virus and other malware outbreaks, Barracuda Central updates the spam and virus definitions downloaded by the Barracuda Spam Firewall through Energize Updates. Upon the next Energize Update, the Barracuda Spam Firewall can block the virus or spam variants associated with the new outbreak via the Barracuda Spam Firewall’s traditional antivirus protection layers.

Pricing and Availability
Barracuda Real-Time Protection technology is immediately available to all Barracuda Spam Firewall customers running firmware release 3.5 or later. All Barracuda Spam Firewall customers with current Energize Updates subscriptions may upgrade to the latest firmware release at no additional charge. For new customers, Barracuda Spam Firewall pricing varies by model and starts at £848 in the UK with no per user licensing fees. International pricing varies by region.

About the Barracuda Spam Firewall
The Barracuda Spam Firewall is available in seven models and supports from 50 to 30,000 active users with no per user licensing fees. Its architecture leverages 12 defence layers: denial of service and security protection, rate control, IP analysis, sender authentication, recipient verification, virus protection, policy (user-specified rules), Fingerprint Analysis, Intent Analysis, Image Analysis, Bayesian Analysis, and a Spam Rules Scoring engine. In addition, the entire Barracuda Spam Firewall line features simultaneous inbound and outbound email filtering with the inclusion of sophisticated outbound email filtering techniques, such as rate controls, domain restrictions, user authentication (SASL), keyword and attachment blocking, dual layer virus blocking, and remote user support for outbound email filtering. The Barracuda Spam Firewall’s layered approach minimises the processing of each email, which yields the performance required to process millions of messages per day. For more information on the Barracuda Spam Firewall, visit

About Barracuda Networks, Inc.
Barracuda Networks is a leading provider of network security appliances for comprehensive email, Internet and IM protection. Its products protect over 40,000 customers around the world, including Adaptec, Caltrans, CBS, Georgia Institute of Technology, IBM, NASA, Pizza Hut, Union Pacific Railroad Company and the U.S. Treasury Department. The Barracuda Spam Firewall and Barracuda Spam Firewall-Outbound protect organisations against spam, viruses and violations to e-mail security policy. The Barracuda Web Filter offers comprehensive content filtering and complete network protection against spyware, malware and viruses. The Barracuda IM Firewall is the only all-in-one gateway solution for IM traffic management and security. The Barracuda Load Balancer offers easy to configure, secure and comprehensive IP network traffic management across multiple servers. Barracuda Networks is a privately held company with headquarters in Campbell, California. Barracuda Networks has offices in eight international locations and distributors in over 80 countries. More information is available at

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