Rackspace Network Security Recognized as Outstanding Example of Enterprise Innovation and IT Leadership

SAN ANTONIO —November 12, 2003— Rackspace Managed Hosting, the leading managed hosting provider, today announced it was named a winner of the InfoWorld 100. Every year, InfoWorld names 100 companies that have made the best use of technology to enhance their business -- projects that use new and emerging technologies to present smart, innovative ways to meet business and technical objectives. Rackspace was honored by InfoWorld Magazine for the development of a sophisticated network security system that helps identify and mitigate the effects of Distributed Denial of Service (DDoS) attacks.

Rackspace is the first hosting provider to offer a DDoS protection solution. PrevenTier is a three-tiered combination of Rackspace’s own patented, proprietary technologies and commercially available solutions from Arbor Networks and Riverhead Networks. The combination works to quickly and accurately locate suspect traffic at the advent of an attack and sanitize it without disrupting the free flow of legitimate network traffic, while dramatically shortening detection and resolution times.

"The InfoWorld 100 recognizes companies like Rackspace Managed Hosting that made the best use of technology to enhance their businesses," stated Steve Fox, editor-in-chief of InfoWorld. "Rackspace built an innovative network security program to fight against distributed denial of service attacks in order to meet critical technical and business objectives."

"It is through our IT leadership and our PrevenTier network security solution that we can guarantee 100 percent network availability to our customers", said Paul Froutan, vice president of engineering, Rackspace Managed Hosting. "The InfoWorld 100 Award validates Rackspace’s commitment to the development of innovative processes and technologies to better serve our customers."

Entries were judged on innovation and project complexity. Judges looked at what cutting-edge technologies were used and the stumbling blocks that were overcome to achieve success. Also considered were integration issues and how project leaders worked with users and other business units. A full list of the 2003 winners is available at: http://www.infoworld.com/565

About InfoWorld Media Group

For 25 years, InfoWorld Media Group has provided cutting-edge coverage and evaluation of IT products and services for technology experts in senior management. Through integrated channels including print, online, events and demand generation, InfoWorld reaches the most influential senior-level information technologists -- those who drive their enterprises’ strategies and technology purchases. Powered by a continued investment in an independent Test Center, InfoWorld analysts and editors provide both hands-on analysis and evaluation, as well as expert commentary on issues surrounding emerging technologies and products. Visit InfoWorld at http://www.infoworld.com.

About IDG

InfoWorld is a division of IDG, the world’s leading technology media, research and event company. IDG publishes more than 300 magazines and newspapers and offers online users the largest network of technology-specific sites around the world through IDG.net, which comprises more than 330 targeted Web sites in 80 countries. IDG is also a leading producer of 168 computer-related events worldwide, and IDG’s research company, IDC, provides global market intelligence and advice through 51 offices in 43 countries worldwide. Company information is available at http://www.idg.com.

About Rackspace Managed Hosting

Rackspace Managed Hosting™ is a leading provider of managed Web hosting solutions. Founded in 1998, Rackspace offers a wide range of managed services for hosting platforms of all sizes and complexities, including burstable connectivity, 100 percent availability SLA, load balancing, security and patching, advanced storage solutions and disaster recovery. Rackspace has received numerous industry awards for its brand of customer service, known as Fanatical Support™, and was awarded the Frost & Sullivan Customer Value Enhancement (CVE) Award in 2002 and 2003. For more information, visit www.rackspace.com, or call 800-961-2888.