Bit9 Raises $9.8 Million in Second Round of Venture Funding; Kleiner Perkins Caufield & Byers Leads Second-Round Financing for Breakthrough Endpoint Security Provider.

CAMBRIDGE, Mass. -- Bit9, Inc. (http://www.bit9.com/), which solves the problem of unwanted software at the endpoint, today announced it has raised $9.8 million in a second round of private venture funding. Kleiner Perkins Caufield & Byers (http://www.kpcb.com/) led the round with participation from existing investors Atlas Venture (http://www.atlasventure.com/) and Highland Capital Partners (http://www.hcp.com/). In conjunction with the funding, Ted Schlein, partner at Kleiner Perkins Caufield & Byers, will be a Board observer. The new round brings Bit9's venture funding to date to $15.8 million, with an additional $2 million provided by a federal grant from NIST ATP (http://www.atp.nist.gov/) in 2003.

"Application control and endpoint security are critical to the success of today's IT operations," said Ted Schlein, partner at Kleiner, Perkins, Caufield & Byers. "We believe Bit9 completely revolutionizes the way companies solve the problem of unwanted software and protect their desktops."

"The new funding is further market validation of Bit9's differentiated technology and impressive market traction," said Jeff Fagnan, partner, Atlas Venture. "The company is providing the first, best, and only answer to enterprises needing a holistic, real-time solution to controlling and eliminating unwanted software at the endpoint."

"We are delighted with Bit9's progress and pleased to continue further investment in this market-leading company," added Paul Maeder, managing general partner, Highland Capital Partners. "Bit9 provides a unique solution that once and for all eliminates the burden of spyware, viruses and even applications that users should not be running. This approach enables IT to finally secure their desktop infrastructure while reducing the total cost of ownership."

In addition to closing its second round of funding, Bit9 recently rounded out its executive team with the appointments of Tom Murphy from Symantec as Chief Marketing Officer last month and Doug May from Endeca as Vice President of Sales in January. Bit9 also recently announced its expansion on the West Coast with the addition of a San Jose office.

In September of 2005, Bit9 launched its breakthrough endpoint security and application control software in the marketplace. Based on patent-pending technology, Bit9 Parity(TM)(http://www.bit9.com/products.html) is the only solution to detect, identify, and stop all types of unwanted software, including spyware (http://www.bit9.com/antispyware.html), malware (http://www.bit9.com/zeroday.html), and non-business applications (http://www.bit9.com/desktop_manage.html) on enterprise desktops, laptops, and servers. Unlike other endpoint security products that focus on what's wrong or malicious, Bit9 Parity tracks and controls what's new and unknown--without relying on malware signatures or behavioral patterns.

About Bit9, Inc.

Bit9 is the first company to solve the problem of unwanted software at the endpoint. As the only solution to detect, identify, and stop spyware, malware, and non-business applications on desktops, laptops, and servers, Bit9 gives IT professionals unprecedented, network-wide visibility and control in real time. Bit9 provides the earliest and best possible protection against known and unknown intrusions, including Zero-day attacks. Founded in 2002 by the founders of Okena (acquired by Cisco) and headquartered in Cambridge, Massachusetts, Bit9 is a privately held company. For more information, visit www.bit9.com.

Bit9, Inc., Automatic Graylists, Find File, FileAdvisor, Parity, and ParityCenter are trademarks or registered trademarks of Bit9, Inc. All other names and trademarks are the property of their respective owners.