ServerVault, a secure managed hosting service, is leasing Internet infrastructure from Metromedia Fiber Network, Inc. (MFN) (Nasdaq:MFNX), a provider of optical IP Internet infrastructure within key metropolitan areas domestically and internationally. ServerVault will use MFN's network and Internet services to provide its customers with secure access to sophisticated network technology and the latest next-generation hosting technology.

Under the terms of the agreement, MFN will connect ServerVault to its One-Hop optical infrastructure and world-class data centers and provide ServerVault with Internet and transit services. MFN's infrastructure is augmented by the highest standards of redundancy and security within an exceptionally robust, secure and reliable environment.

About ServerVault:

ServerVault is an ultra-secure outsourced managed hosting services provider. The company provides applications hosting, data storage, VPN services, and firewall and intrusion detection technology to data-dependent, security-obsessed companies. For more information, visit www.servervault.com.

About Metromedia Fiber Network, Inc.:

Metromedia Fiber Network, Inc. is a provider of optical IP Internet infrastructure within key metropolitan areas domestically and internationally. MFN's optical network enables its customers to implement the latest data, video, Internet and multimedia applications. For more information, visit www.mmfn.com.