ArcSight Expands Asia Distribution Network with D-Link Taiwan

HONG KONG - January 28, 2008 - ArcSight, Inc., a leader in Enterprise Security and Compliance Management solutions, today announced that it has appointed D-Link Taiwan, a global leader in the design, manufacture and marketing of advanced networking, broadband, digital, voice and data communications solutions, to be its distributor in Taiwan. D-Link Taiwan will distribute the ArcSight Log Management Suite and ArcSight Threat Response Manager (TRM), which allow enterprises to identify network problems and respond with specific actions. The company will also distribute the ArcSight Network Configuration Manager (NCM), which enables enterprises to manage and monitor centrally the configuration and compliance status of an enterprise's network devices.

"We are delighted to form a strategic distribution partnership with ArcSight. The ArcSight product line offers our partners and customers a broad range of solutions that address security and compliance requirements and reduce network downtime and the burden on IT administrators," said Huang Richard Huang, senior product manager, D-Link Taiwan. "D-Link Taiwan will now be able to provide a complete solution to resolve customers' requirements for network security and fast response to both internal and external threats."

"D-Link has rich experience in marketing and distributing enterprise solutions via its extensive reseller network in Taiwan and in the Asia-Pacific region," said Tom Reilly, President and COO of ArcSight. "The addition of the ArcSight product line will give D-Link's partners a comprehensive solution to network security and compliance management and enable enterprises to collect, monitor and manage all log data efficiently for compliance, security or IT operations purposes."

About ArcSight
ArcSight is a leading provider of security and compliance management solutions that intelligently mitigate business risk for enterprises, MSSPs and government agencies. ArcSight's ESM platform delivers a centralized, real-time view of disparate events across geographically dispersed and heterogeneous business and technology infrastructures. ArcSight also provides complementary software that delivers pre-packaged solutions tailored to specific security and compliance initiatives, as well as appliances that streamline threat response, event log archiving and network configuration. This real-time and historic view of business risk as it applies to external security, insider threats and compliance breaches provides customers with the intelligence required to effectively protect their business. Please visit www.arcsight.com for more information.

About D-Link
Founded in 1986 with international headquarter in Taiwan and 90 global offices, D-Link is a global leader in the design, manufacture and marketing of advanced networking, broadband, digital, voice and data communications solutions. Following its company motto, "Building Networks for People," D-Link continually meets the global networking and connectivity needs of digital home consumers, small office professionals, small- to medium-sized businesses, and enterprise environments. Its established and expanding network of global distribution and delivery channels brings products to more than 100 countries every day. D-Link does more to meet the growing demand for computer networking and communications solutions. Its development of global distribution channels is now in more than 100 countries. For more information, please visit http://www.dlink.com.

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ArcSight, the ArcSight logo, ArcSight TRM and ArcSight NCM are trademarks of ArcSight, Inc.

Media contact:
Ada Yiu – ArcSight Inc.
Tel: (852) 2166 8260
Email: ayiu@arcsight.com