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Sourcefire Addresses the Entire Real-time Network Defense Challenge Perimeter defenses alone are no longer enough to secure your network. An abundance of mobile devices, laptops, wireless networks, PDAs, outsourcing, even offshore partnerships – all these multiple entry points to the network represent another opportunity for compromise.
Today, the realities of a dissolving perimeter and the limitations of traditional intrusion prevention and detection systems (IPS/IDS) are driving organizations to recast their network security paradigms and embrace a new, more effective approach.
Sourcefire’s 3D approach – Discover, Determine, Defend – is a comprehensive intelligent network defense system that unifies intrusion and vulnerability management technologies to provide customers with effective, real-time network security for today’s real world challenges.
Sourcefire’s 3D approach is a fully integrated, real-time process of discovering risks, vulnerabilities and threats; determining their business impact; and taking the appropriate action to defend the network. With the Sourcefire 3D approach, customers are able to access the condition of the network in real-time … update and enforce policies … monitor and manage vulnerabilities … and respond to security threats based on priorities.
The Sourcefire 3D System , including Sourcefire Intrusion Sensors and Agents, Sourcefire RNA Sensors and the Sourcefire Defense Center, offers an effective security solution. Each appliance includes hardware, software, operating system and database – pre-installed for ease of deployment, tuned for peak performance, and self-maintaining for low overhead. 
Sourcefire Intrusion Sensors
Built on the legacy of the open source Snort® rules-based detection engine, Sourcefire Intrusion Sensors use a powerful combination of signature, protocol, and anomaly-based inspection methods to achieve its attack detection and prevention capability.
Every aspect of the sensor can be configured and customized to ensure that users detect and prevent the events most important to them. Flexibility in the rules language and the numerous configuration options (port density, interface types, deployment modes for example) allow users to define new ways to identify and prevent threats and enforce policies specific to their individual environment.
Sourcefire RNA Sensors™
Using a combination of passive network discovery, behavioral profiling and integrated vulnerability management technologies, Sourcefire RNA (Real-time Network Awareness™) Sensors provide a comprehensive view of security events, and the basis for effective network defense.
Sourcefire RNA Sensors continually monitor all network assets, (servers, routers, PCs, firewalls, wireless access points) presenting a real-time view and highly-detailed profiles of all network assets including their configuration, behavior, potential vulnerabilities, and associated changes.
This degree of insight and intelligence not only allows organizations to protect their networks with more confidence; it reduces the ongoing costs associated with managing and responding to network threats.
Sourcefire Intrusion Agents
Sourcefire Intrusion Agents for Snort® allow open source Snort® users to benefit from the Sourcefire 3D approach while protecting and improving their investment in open source Snort® deployments. All the intrusion event information from Snort® sensors can be aggregated directly into the Sourcefire Defense Center with data from both Sourcefire Intrusion Sensors and Sourcefire RNA Sensors to trigger the ABCs of Defense -- Alert, Block and Correct.
Sourcefire Defense Center – The Heart of the 3D System
By closely integrating and correlating the threat information provided by Sourcefire Intrusion Sensors and Agents with the network intelligence provided by Sourcefire RNA Sensors, the Sourcefire Defense Center prioritizes the millions of security events to determine the most critical events to an organization’s business, and takes the appropriate actions.
These actions allow users to leverage the ABCs of Defense – Alert, Block, and Correct -- all in real-time, against all network threats. - Alert. Automated warnings to individuals or other management systems via SYSLOG, email, SNMP traps, etc. ensure attack warnings are rapidly addressed.
- Block. Critical threats are not only blocked, but actually contained or quarantined via techniques including dropping traffic, disrupting sessions between devices, and integrating with access control devices such as firewalls, routers and switches.
- Correct. New vulnerabilities and threats can be automatically mitigated by integrating with patch or configuration management systems to apply configuration or code changes to eliminate possible exploitation.
This high level of contextual intelligence allows customers to determine why a change occurred, whether an attack poses a serious threat to a target, and how to best prioritize and shape the response.
The Sourcefire Defense Center allows security administrators to more effectively secure their networks by providing: - A single, central point of administration analysis and reporting
- Rapid response to potential attacks according to the ABCs of Defense
- More consistent management and enforcement of security policies and compliance requirements
Bottom line: Sourcefire addresses the entire real-time network defense challenge, providing all the benefits of an end to end network security solution for the real world.
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