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Qualys Announces Acquisition of Nemean Networks

Technology Acquisition Expands Company’s Research Capabilities for IDS/IPS and Malware Detection Groundbreaking Technology to be Showcased at the Qualys Security Conference on Monday Oct. 11 in San Francisco

Redwood City, Calif. - October 5, 2010 - Qualys®, Inc., the leading provider of on demand IT security risk and compliance management solutions, today announced the acquisition of Nemean Networks, LLC, completed on August 31, 2010. This acquisition will expand Qualys’ research capabilities further into intrusion and malware detection, and allows the company to work with the community on developing Intrusion Detection System (IDS) signatures for Snort and other open source tools. Qualys now owns exclusive rights to Nemean’s technology including all patents.

Nemean’s core technology was developed at the University of Wisconsin (UW)-Madison through support from the National Science Foundation, the Army Research Office and the Department of Homeland Security. That work resulted in four UW patents, licensed exclusively from the university. Nemean was founded as an LLC and opened its offices in Madison, Wisconsin, in June 2007.

This acquisition brings to Qualys:

  • A groundbreaking intrusion detection technology incubated at the UW-Madison and supported by four patents. Nemean’s Intrusion Prevention System (IPS) and IDS technology automatically generates protocol behavior-aware signatures that identify malicious attack activity with unprecedented accuracy.
  • A state-of-the-art Honeynet system that acts as an interface to IP reputation and signature generation and captures information on malware attacks that Qualys will share with the community.
  • A talented team directed by Paul Barford, CEO and founder of Nemean Networks and the founder and director of the Wisconsin Advanced Internet Laboratory at UW. As part of this acquisition, Barford will become Qualys’ Chief Scientist.

“Qualys, over the last decade, has built a highly scalable Software-as-a-Service (SaaS) platform to better address the IT security and compliance needs of corporations and service providers worldwide,” said Barford. “We are thrilled to join Qualys so we can integrate additional intelligence into the QualysGuard platform, including automatic IDS signature generation capabilities and general attack intelligence that we collect from our Honeynet system for the benefit of the community.”

“With this acquisition, we are now expanding our malware and threat detection capabilities in a highly automated manner,” said Philippe Courtot, chairman and CEO of Qualys. “It is also our intention to build it into a global community effort to better fight increasingly sophisticated cyber attacks.”

Qualys will be demonstrating the Nemean Networks technology, including the Honeynet system, at the 8th annual Qualys Security Conference in San Francisco on Oct. 11, 2010. For more information and to RSVP to attend, please visit:

About Qualys

Qualys, Inc. is the leading provider of on demand IT security risk andcompliance management solutions – delivered as a service. Qualys’Software-as-a-Service solutions are deployed in a matter of hours anywhere inthe world, providing customers an immediate and continuous view of theirsecurity and compliance postures.

The QualysGuard® service is used today by more than 4,000 organizations in 85countries, including 42 of the Fortune Global 100 and performs more than 500million IP audits per year. Qualys has the largest vulnerability managementdeployment in the world at a Fortune Global 50 company.

Qualys has established strategic agreements with leading managed serviceproviders and consulting organizations including BT, Etisalat, Fujitsu, IBM,I(TS)2, LAC, NTT, SecureWorks, Symantec, Tata Communications and TELUS.

For more information, please visit


Qualys, the Qualys logo and QualysGuard are proprietary trademarks of Qualys, Inc. All other products or names may be trademarks of their respective companies.

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Media Contact:
Tami Casey