S1 Corporation Selects Micromuse’s Netcool for Security Management; Solution Consolidating Management of S1’s Realtime Enterprise-Wide Security Status Information

S1 Corporation Selects Micromuse’s Netcool for Security Management; Solution Consolidating Management of S1’s Realtime Enterprise-Wide Security Status Information

Business Editors/High-Tech Writers

SAN FRANCISCO–(BUSINESS WIRE)–Sept. 16, 2002

Micromuse Inc. (Nasdaq: MUSE), the leading provider of service and business assurance software, today announced that S1 Corporation, a leading global provider of enterprise solutions to the financial services industry, is deploying Micromuse’s Netcool(R) for Security Management(TM) solution.

The solution is a key component of S1’s managed Internet security services. S1 Corporation is a leading provider of software solutions to banks, credit unions, insurance companies and investment firms worldwide.

“Security is a primary focus for financial institutions. The relationship underscores our commitment to working with our customers in this area and helping them meet their regulatory requirements,” said Terry Oehring, Director of Information Security for S1 Corporation’s Community and Regional Group. “The Netcool for Security Management offering can be used by financial service providers of any size to significantly enhance security management capabilities. As we plan expansion of our services, the Netcool-based security solution will be critical to continuing to ensure the security and integrity of our customers’ data.”

The Netcool for Security Management solution enables the consolidation, correlation, presentation and reporting on security elements such as VPNs, firewalls, anti-virus programs, authentication/ authorization mechanisms, intrusion detection systems, and environmental and physical security applications. S1 is utilizing the Netcool solution as part of its remote network and monitoring product and service suite. With greater management control and more extensible methods for locating and tracking security information, the Netcool for Security Management solution provides S1 with the ability to detect, isolate and help prevent attacks that could affect customer services.

“As a manager of security managers, the Netcool security management solution helps increase user functionality by offering several ways to view and assimilate realtime data on security threats and the status of the IT environment,” said Mike Donohue, Micromuse’s Senior Vice President, Global Sales & Technical Services. “For S1 this is an important capability for protecting its customer interaction points and the associated information and applications.”

About the Netcool Suite

Micromuse’s Netcool(R) software suite provides businesses with the assurance that their networks, services and applications are working. By allowing our customers to see what’s happening throughout the infrastructure in realtime, Netcool applications enable them to respond to problems before they cause network-based business services to go down.

Netcool suite applications install out-of-the-box, deploy rapidly and scale as networks grow. Micromuse’s flagship, Netcool/OMNIbus(TM) application, includes a library of off-the-shelf software modules that allow our customers to collect and consolidate fault information from more than 1,000 environments spanning voice and IP, cable/broadband, switches and routers, and enterprise management systems.

About S1 Corporation

S1 is a leading global provider to more than 3,900 banks, credit unions, insurance providers, and investment firms of enterprise software solutions that turn customer interactions into profits. S1’s Enterprise software solutions deliver a transactionable, customer-centric view across all delivery channels, resulting in a more compelling experience for the customers and a more profitable relationship for the financial institution. S1 is the only provider with the proven experience, breadth of products, and financial strength to empower financial services companies’ Enterprise strategies. Additional information about S1 is available at www.s1.com.

About Micromuse

Micromuse Inc. (Nasdaq: MUSE) is the leading provider of service and business assurance software. Micromuse’s recent list of awards includes the Crossroads A-List Award for Best IP Network Diagnosis Product for the Netcool(R)/Visionary(TM) application. In addition, Micromuse was recently recognized in the Forbes 500, Bloomberg’s Tech 100, the Barron’s 500, the Business Week Info Tech 100, Deloitte & Touche’s Technology Fast 500, the San Francisco Chronicle 500 and Network World’s NW200. Micromuse customers include AT&T, BT, Cable & Wireless, Charles Schwab, Deutsche Telekom, Digex, EarthLink, GE Appliances, ITC DeltaCom, J.P. Morgan Chase, T-Mobile and Verizon. Headquarters are located at 139 Townsend Street, San Francisco, Calif. 94107; (415) 538-9090. The Web site is at www.micromuse.com.

Micromuse and Netcool are registered trademarks of Micromuse Ltd. All other trademarks and registered trademarks in this document are the properties of their respective owners. Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Any forward-looking statements contained herein are based on current expectations, but are subject to a number of risks and uncertainties.

The factors that could cause actual future results to differ materially from the forward-looking statements include the following: fluctuations in customer demand, the Company’s ability to manage its growth (including the ability to hire sufficient sales and technical personnel), the risks associated with the expansion of the Company’s distribution channels, the risk of new product introductions and customer acceptance of new products; the rapid technological change which characterizes the Company’s markets, the risks associated with competition, the risks associated with international sales as the Company expands its markets, and the ability of the Company to compete successfully in the future, as well as other risks identified in the Company’s Securities and Exchange Commission Filings, including but not limited to those appearing under the caption “Risk Factors” in the Company’s most recent Quarterly Reports on Form 10-Q and on Form 10-K on file with the Securities and Exchange Commission and available on the Company’s Web site.

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