Patron/TrustWave Announce Merger Extension.

Business Editors

CHICAGO--(BUSINESS WIRE)--April 25, 2003

Patron Systems, Inc. (OTCBB:PTRS) and TrustWave Corporation are pleased to announce an agreement to extend the deadline to complete their merger transaction. The merger agreement is being modified to reflect favorable business developments at TrustWave.

About Patron Systems, Inc.

Patron Systems, Inc. is a development stage information security company incorporated in April 2002 to provide security services and technology products to global enterprises. Patron's Security Services Group intends to work with organizations to provide comprehensive, certifiable solutions for trusted information environments. Initial offerings are contemplated to include vulnerability assessments; compliance and certification reviews, training, remediation, monitoring, and managed services. Patron's Technology Products Group, through its planned acquisition of third generation software and hardware, plans to help enterprises address security needs holistically throughout the IT environment. Patron Systems intends to deploy products maintaining the highest standards of independence, product quality and functionality, as well as ROI for the client organization.

About TrustWave Corporation

TrustWave Corporation, founded in 1995, provides Enterprise Information Assurance services to a wide range of corporate, educational, and government clients. TrustWave differentiates itself by implementing the National Security Agency's INFOSEC Assessment Methodology (IAM), a key to Presidential policy establishing security benchmarks for the nation's critical infrastructure. NSA-trained security consultants comprise the core of TrustWave's professional services staff and have extensive experience in Information Technology and security solution implementation for the Department of Defense, the U.S. Secret Service, and the Department of Justice. Clients such as First Data Corporation, NASDAQ, AIG, Citicorp, and Pfizer have selected TrustWave to address enterprise-wide Information Assurance concerns much larger than basic system intrusion prevention. TrustWave has expertise in all areas of Information Assurance, and offers the following services: Vulnerability Assessments, network and application penetration testing and software code review, Security Policy Development, Secure Architecture Design, Electronic Forensics and Investigations, and security product implementation and integration. TrustWave also provides 24x7 Managed Security Services through its TrustSentry(R) offering, including firewall and IDS management and periodic vulnerability scanning.

Forward Looking Statements

The statements made in this press release are forward-looking and are based on current expectations that are subject to a number of uncertainties and risks, and actual results may differ materially. There can be no assurance that the proposed transaction will be completed. The uncertainties and risks also include, but are not limited to, the ability to complete the proposed acquisition of TrustWave or any other acquisitions, the ability of PTRS, Patron or TrustWave to execute effectively its business plan, changes in the market for information security solutions, changes in market activity, anticipated increases in customers, seasonality, the development of new products and services, the enhancement of existing products and services, competitive pressures (including price competition), system failures, economic and political conditions, changes in consumer behavior and the introduction of competing products having technological and/or other advantages. Any forward-looking statements are made pursuant to the Private Securities Litigation Reform Act of 1995 and, as such, speak only as of the date made. Statements made in this document that are not purely historical are forward-looking statements, including any statements as to beliefs, plans, expectations, or intentions regarding the future. PTRS and Patron assume no obligation to update information concerning its expectations.