Citadel Security Software Selected by Citizens Business Bank to Protect Network from Security Vulnerabilities.

DALLAS -- Citadel's Hercules Solution Used to Automatically Remediate Vulnerabilities for Largest Financial Institution Headquartered in the Inland Empire Region of Southern California 

Citadel Security Software Inc. (NASDAQ:CDSS), a leader in vulnerability management and policy enforcement solutions through automated vulnerability remediation (AVR) technology, today announced that it has added Citizens Business Bank, the 25th largest regional bank in California with assets over $4 billion, to its growing number of financial institution customers. Citadel's automated vulnerability remediation solution, Hercules, will be deployed in 37 financial centers across Southern California to automate the identification and resolution of all five classes of vulnerabilities, including software defects, misconfigurations, unsecured user accounts, unnecessary services and backdoors.

"The demands on the IT organization to ensure network security have increased greatly in recent years, and applying software patches alone wasn't enough to satisfy the stringent security and regulatory requirements. We needed an automated solution to fix vulnerabilities on our network," said Elsa Zavala, CIO for Citizens Business Bank. "To protect our customer's privacy, we must ensure the best possible security posture. Using Hercules, we now have the ability to take action and remediate vulnerabilities immediately."

Due to the increased security measures attributed to legislation such as Gramm-Leach-Bliley, Sarbanes Oxley and other regulatory requirements the financial institutions must proactively identify and protect against the enormous number of security vulnerabilities that plague IT networks. Manually resolving the vulnerabilities found on each device is a time-consuming and resource-intensive task, making it an ineffective approach to fully protect confidential customer records and financial data. Citadel helps financial institutions mitigate the risk of security vulnerabilities by providing users with the technology to automatically remediate vulnerabilities quickly and effectively while under the complete control of a professional security administrator.

"Our reach within the financial services sector continues to broaden as we now add Citizens Business Bank to our current list of customers," said Edward Krupa, vice president of sales for Citadel. "By choosing Hercules, the Bank is able to automate vulnerability remediation, reducing costs and manpower to eliminate security vulnerabilities on their network while protecting their customer's private information."

Citadel's Hercules technology is the first vulnerability remediation solution to automate the resolution of all classes of vulnerabilities. With the largest library of tested vulnerability remedies across Windows and UNIX platforms and interoperability with industry leading network scanners and vulnerability assessment tools, Hercules allows users to import and aggregate data from multiple sources, review, approve and customize resolutions and systematically deploy vulnerability fixes.

About Citizens Business Bank

CVB Financial Corp. (NASDAQ: CVBF) is the holding company for Citizens Business Bank. The Bank is the largest financial institution headquartered in the Inland Empire region of Southern California. It serves 30 cities with 37 business financial centers in the Inland Empire, Los Angeles County, Orange County and the Central Valley areas of California. Citizens Business Bank was recently recognized at the Annual Strategic Issues Summit with the "Market Cap" Award. This Award was presented to recognize the Company for producing a return to its original shareholders of 41,034%--over 400 times the original investment. This is the highest return in the history of the banking industry in California. The Strategic Issues Summit is co-sponsored by Carpenter & Company and the California Bankers Association. For more information on CVB Financial Corp. visit the Citizens Business Bank website at www.cbbank.com.

About Citadel

Citadel Security Software Inc., a leader in enterprise vulnerability management solutions powered by AVR technology, helps enterprises effectively neutralize security vulnerabilities. Citadel's patent-pending, Common Criteria EAL 3 certified Hercules(R) technology provides users with full control over the automated remediation process, enabling efficient aggregation, prioritization and resolution of vulnerabilities detected by industry-standard vulnerability assessment tools. SecurePC(TM) and NetOFF(TM) products enable companies to enforce security policies from a single point of control. Citadel's solutions enable organizations to ensure the confidentiality of information, reduce the time and costs associated with the inefficient manual remediation process, and facilitate compliance with organizational security policies and government mandates such as FISMA, HIPAA and Gramm-Leach-Bliley legislation. For more information on Citadel, visit www.citadel.com, or contact the company at [phone].

Safe Harbor/Forward-looking Statements:

This press release may contain forward-looking statements that are intended to be subject to the safe harbor protection provided by Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements relate to future events or future financial performance and involve known and unknown risks and uncertainties that may cause actual results or performance to be materially different from those indicated by any forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as "forecast," "may," "will," "could," "should," "anticipate," "expect," "plan," "believe," "potential" or other similar words indicating future events or contingencies. Some of the things that could cause actual results to differ from expectations are: revenue recognition policies that may delay recognition of revenues; the ability of government entities to terminate licenses of our products for convenience; the current economic and geopolitical environment; current information technology spending trends; the uncertainty of funding of government information technology security projects; a lack of Citadel operating history; uncertainty of product acceptance; uncertainty of ability to compete effectively in a new market; the uncertainty of profitability and cash flow of Citadel; intellectual property rights and dependence on key personnel; economic conditions; the continued impact of terrorist attacks, global instability and potential U.S. military involvement; the competitive environment and other trends in the company's industry; changes in laws and regulations; changes in the company's business plans; interest rates and the availability of financing; liability and other claims asserted against the company; labor disputes; the company's ability to attract and retain qualified personnel; and inflation. For a discussion of these and other risk factors, see the company's Annual Report on Form 10-KSB for the year ended December 31, 2003 and its Quarterly Report on Form 10-QSB for the quarter ended September 30, 2004. All of the forward-looking statements are qualified in their entirety by reference to the risk factors discussed therein. These risk factors may not be exhaustive. The company operates in a continually changing business environment, and new risk factors emerge from time to time. Management cannot predict such new risk factors, nor can it assess the impact, if any, of such new risk factors on the company's business or events described in any forward-looking statements. The company disclaims any obligation to publicly update or revise any forward-looking statements after the date of this report to conform them to actual results.

Editors Note: Citadel is a trademark and Hercules is a registered trademark of Citadel Security Software.