Market leading SIEM solution chosen to ensure security from internal and external threats, compliance, and vastly improved business efficiency

LONDON, UK — 11th March, 2008 — ArcSight, Inc., a leader in Enterprise Security and Compliance Management solutions, today announced that T-Mobile has implemented its market leading Security Information and Event Management (SIEM) solution, ArcSight ESM.

ArcSight ESM provides T-Mobile with the ability to control, monitor, respond and adapt to threats in real-time.  The automated monitoring and response capabilities has released T-Mobile’s technicians from hours of low-level, manual analysis, allowing them to concentrate on improving IT security.  It also enables T-Mobile to adhere to regulatory compliance, particularly Sarbannes Oxley.

“The broad oversight that ArcSight provides, along with the automated correlation capability, is generating distinct advantages. We now have within our ‘operations security cockpit’ a comprehensive security platform that enables us to discover risks, correlate relevant information, assess vulnerabilities and communicate compliance to stakeholders and customers,” said T-Mobile Operation Security Management. “This automation obviously brings massive business benefits just from a time savings alone, making us so much more efficient. We also now have an early warning system for detecting suspicious activity that could be an insider threat.”

ArcSight ESM helps protect against the range of threats that businesses face today – helping ensure compliance and combat security threats, fraud, physical breaches, malicious insiders and more.  ArcSight ESM collects and intelligently parses data from the vast array of event sources – and delivers a single view into that information that can be used by corporate stakeholders across an organisation.