Riverbed Partners With Microsoft For Secure Web Gateway Solution

PRESS RELEASE

SAN FRANCISCO – June 29, 2010 –Riverbed Technology (NASDAQ: RVBD), the IT performance company, today announced an extension of its relationship with Microsoft through the delivery of a comprehensive best-of-breed secure Web gateway and WAN optimization solution for organizations with remote offices. The joint solution combines Riverbed' award-winning WAN optimization technology with Microsoft’s Forefront Threat Management Gateway (TMG) 2010 solution into a single appliance. This offering enables customers to virtualize their branch office infrastructure and deliver LAN-like application performance for branch users while protecting corporate networks from Web security threats such as malware and spam.

With this offering, Riverbed and Microsoft customers have the ability to further virtualize IT resources at the branch in a cost-effective manner while delivering end-to-end security. The solution takes advantage of the capabilities of the Riverbed Services Platform (RSP), a virtualized platform capable of running branch services, integrated with the Steelhead' appliance hardware. RSP allows customers to deploy up to five best-of-breed branch services on a single device, enabling organizations to consolidate the hardware infrastructure at the branch office, resulting in easier IT management and lower operational overhead and power costs. In addition to the TMG security platform, Riverbed customers have the ability to virtualize and run other Microsoft services on the RSP, including Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Active Directory and DNS/DHCP.

“Microsoft has a long history of working with Riverbed to help our mutual customers achieve strategic initiatives, such as virtualization,” said Zakie Mashiah, Principal Group Manager in the Server and Tools Business at Microsoft. “This joint solution enables organizations to realize what we call Business Ready Security through Riverbed best-of-breed WAN optimization solutions fully integrated with our comprehensive Web security solution in a way that is simple to manage and deploy.”

Customers deploying Microsoft’s TMG security platform on RSP are able to protect their businesses from malware and other threats, and enable employees to safely and productively use the Internet. TMG provides multiple layers of continuously updated protections that are integrated into a unified, easy to manage gateway, reducing the cost of Web security at the branch office. Forefront TMG 2010 running on RSP provides multiple inspection technologies, including application and network-level firewalls, intrusion prevention and malware filtering, to keep users safe from Web-based attacks and prevent malware outbreaks on the enterprise caused by inadvertent employee visits to malicious sites or by downloads of infected files. Additionally, RSP integration with the Forefront TMG Web Protection Service enables customers to enforce a consistent Web security policy for application protection, malware inspection and URL filtering within the branch. When taking advantage of TMG on the RSP, enterprises are able to obtain all of these security benefits and WAN optimization, while simplifying the management and lowering the costs of its edge services.

“Customers are increasingly looking to virtualize IT resources at the branch office in order to reduce costs and simplify management,” said Venugopal Pai, vice president, global alliances at Riverbed. “RSP offers customers the flexibility to virtualize their key edge services such as Microsoft’s TMG secure Web gateway while realizing the benefits of Riverbed best-of-class WAN optimization solutions. By partnering with companies like Microsoft, Riverbed is the only vendor to offer a single appliance that combines WAN optimization with a complete end-to-end security offering.”

Availability

The joint solution is available today. For more information, please view the Riverbed partner and product profile. Forward Looking Statements

This press release contains forward-looking statements, including statements relating to the expected demand for Riverbed's products and services, and statements relating to Riverbed’s ability to meet the needs of distributed organizations. These forward-looking statements involve risks and uncertainties, as well as assumptions that, if they do not fully materialize or prove incorrect, could cause our results to differ materially from those expressed or implied by such forward-looking statements. The risks and uncertainties that could cause our results to differ materially from those expressed or implied by such forward-looking statements include our ability to react to trends and challenges in our business and the markets in which we operate; our ability to anticipate market needs or develop new or enhanced products to meet those needs; the adoption rate of our products; our ability to establish and maintain successful relationships with our distribution partners; our ability to compete in our industry; fluctuations in demand, sales cycles and prices for our products and services; shortages or price fluctuations in our supply chain; our ability to protect our intellectual property rights; general political, economic and market conditions and events; and other risks and uncertainties described more fully in our documents filed with or furnished to the Securities and Exchange Commission. More information about these and other risks that may impact Riverbed’s business are set forth in our Form 10-Q filed with the SEC on April 30, 2010. All forward-looking statements in this press release are based on information available to us as of the date hereof, and we assume no obligation to update these forward-looking statements. Any future product, feature or related specification that may be referenced in this release are for information purposes only and are not commitments to deliver any technology or enhancement. Riverbed reserves the right to modify future product plans at any time.

About Riverbed Riverbed Technology is the IT performance company. The Riverbed family of wide area network (WAN) optimization solutions liberates businesses from common IT constraints by increasing application performance, enabling consolidation, and providing enterprise-wide network and application visibility – all while eliminating the need to increase bandwidth, storage or servers. Thousands of companies with distributed operations use Riverbed to make their IT infrastructure faster, less expensive and more responsive. Additional information about Riverbed (NASDAQ: RVBD) is available at www.riverbed.com.