UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant x                            Filed by a Party other than the Registrant ¨

Check the appropriate box:

Secure Computing Corporation

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

© 2007 McAfee, Inc. McAfee to Acquire Secure Computing Dave DeWalt CEO & President, McAfee Dan Ryan, CEO & President, Secure Computing This filing consists of the PowerPoint presentation from the September 23, 2008 conference call.

Cautionary Statement This discussion may contain forward-looking statements. These statements include, among others, those regarding our future investments in complementary businesses, products and technologies, our expectation that our financial results will continue to fluctuate, our expectation that international revenue will remain a significant percentage of our net revenue, our expectation that both product and pricing competition will increase, our expectation that product-related expenses will increase, our expectations about future sales to our top ten distributors and our sales efforts through the channel and other partners, the expected geographic composition of our future revenue, our expected future revenue mix, our expected revenue realization rates, the anticipated future trend of specific categories of expenses, the expected future impact related to change in senior management, our expected benefits from acquisitions and strategic relationships or partnerships or our expected future growth from those acquisitions, relationships or partnerships, stock-based compensation expense, our expected settlement of pending federal and state stockholder derivative lawsuits, our use of cash for acquisitions, our expected ability to meet our obligations through available cash and internally-generated funds, our expectation of generating positive working capital through operations, our expectations regarding growth opportunities, our expected continuing investment in our global systems and infrastructure and our belief as to working capital being sufficient to meet our cash requirements in future periods. Forward looking statements are based on management’s current expectations and are subject to risks and uncertainties. In addition, we may not achieve our planned revenue realization rates, succeed in our efforts to grow the business, combat effectively the security threats of the future, build upon our technology leadership, leverage our relationships and opportunities to the degree expected, or capture market share, benefit from our acquisitions and strategic relationships or partnerships or our partnership distribution model as anticipated, notwithstanding related commitment or related investment; our customers may not respond as favorably as anticipated to our product or technical support offerings, we may not satisfactorily anticipate or meet our customers’ needs or expectations, and the industry shift to security suites may not be adopted to the extent anticipated; our product and service offerings may not continue to interoperate effectively with newly-developed operating systems; we may not benefit from our investments in systems, personnel and infrastructure as anticipated; we may experience delays in product development or the release of previously-announced products; we may choose not to deliver a previously-announced product; we may experience delays or losses in revenue resulting from outages in the integrated systems on which we are highly dependent, and further risks may arise from our past stock option granting practices. In addition, a number of operational and other factors, from new product introductions, the mix of products and services sold, the size of deals closed in a quarter, the amount of revenue deferred in a quarter, the integration of acquired businesses, changes in senior management, the competition we face in the market, currency fluctuations, to the greater macroeconomic environment, to name a few, may cause our revenue, gross margins and operating results to fluctuate significantly from period to period. We caution you that actual results may vary, perhaps materially, from the forward-looking statements referenced in this discussion. We encourage you to review the risk factors contained in our filings with the Securities and Exchange Commission, including our annual report on Form 10-K for the year ended December 31, 2007 and our quarterly report on Form 10-Q for the quarter ended June 30, 2008 for more detailed information on the risks and uncertainties related to McAfee and our business. We do not undertake to update any forward looking statements.

Worlds Largest Dedicated Security Company • 21 year history • Leading security research experts • Recognized by top analysts, publications • $1.3B+ cash, no debt, balanced revenue through multiple markets Customer Leadership • All market segments, from consumer to enterprise • The top 10 of the Forbes Global 2000 use McAfee • More than 125 million users • Over 55 million enterprise endpoints managed and protected • Shipped on 62 million mobile devices • 125 million SiteAdvisor downloads Global Presence • Strong management team & 4,500+ dedicated employees • Presence in 120 countries • Development & research in 26 countries • Anytime, anywhere, local language support Award Winning Portfolio • World class endpoint security, network security and risk & compliance solutions on multiple platforms, integrated in suites • Portfolio-wide console management • Third-party integration • 315 patents & many more patents pending • Win an award, or product review, every 11 days on average 9/23/2008

Market Leadership • #1 in Web Security Appliances • #2 in messaging security appliance • #2 in URL seats • 60% of Fortune 500; 56% of DJ Global 50; 70% of top 25 banks Technology Leadership • TrustedSource, real-time Internet reputation system for proactive security • Most comprehensive, integrated application gateway security solution • >150 patents pending or granted Scale and Financial Strength • Annual run rate ~$300M • Profitable • 900+ Employees • 2000+ global partners • Solutions deployed in 106 countries Singular Focus • Comprehensive & integrated enterprise gateway security • Network & application gateways, inbound & outbound • One of the world’s largest independent security companies

With Secure Computing, McAfee Becomes one of the Largest Network Security Vendors • With $500M network security portfolio, McAfee becomes one the largest network security players, along with Cisco, Juniper, and Check Point • Following closing, Secure Computing will become part of McAfee’s Network Security Business Unit, to be led by Dan Ryan, currently President & CEO of Secure Computing • Secure Computing brings 2,000+ network security partners and 200+ person sales team specializing in network security • Network Security business unit is presented with $10B+ market opportunity in ‘09 5 9/23/2008 “Secure Computing has a best of breed security line up as broad as Cisco.” - Gartner Group

Secure Computing Strengthens McAfee’s Network Security Leadership

With Secure Computing, McAfee Offers Industry’s Most Complete Network Security Solution Flexible Delivery Options Industry’s Most Complete Network Security Solution Centrally Managed & Integrated Best-of- breed Products All-in-one, easy-to-use solutions Solution for Businesses of All Sizes Appliance SaaS Software Virtual Appliance IPS Data Protection NAC Firewall Web Security Email Security SMB Enterprise

$10B+ Network Security Market Opportunity in ‘09 8 9/23/2008 Source: IDC, Infonetics $M

9 Industry’s Most Complete Solution Across Endpoint, Network, Data and Risk & Compliance Anti-virus Anti-spyware Host IPS NAC Desktop FW Policy Auditor Industry’s most complete endpoint security solution Full Disk encryption File & Folder encryption Device Control DLP Host Network IPS Web Security Email Security NAC Vulnerability Management Policy Auditor Remediation Manager Risk Analyzer Industry’s most complete data security solution Industry’s most complete network security solution Industry’s most complete risk & compliance solution

With Secure Computing, McAfee offers Complete Life- Cycle Management for Critical Content & Data Internet In-the-Cloud Protection Endpoint Protection • Monitor • Filter • Protect • Encrypt • Discover • Classify • Monitor • Protect • Filter • Encrypt • Archive • Monitor • Filter • Protect • Archive • Encrypt Comprehensive total protection strategy Avert Labs Network Protection IPS Data Protection NAC Firewall Web Security Email Security

General Messages 100 Billion per month Enterprise Messages 10 Billion per month Millions of URLs per month Firewall Web Messaging Analytics Engine Reputation Score Analyze Behavior • Volume • Social network • Persistence • Longevity Verify Identities • IP • Domain • URL • Image • Message Data Store Collective Threat Intelligence In the Cloud SECURITY TrustedSource Technology Extends McAfee’s “In-the-Cloud” Security Intelligence consumer SMB enterprise Secure Computing TrustedSource Vulnerability Research Risk and Compliance HIPs Malware Research SPAM Research SiteAdvisor Artemis McAfee Avert

Secure Computing: 22,000+ Customers in 106 Countries Secure Computing’s 22,000+ customers & 2,000 partners in 106 countries can rely upon McAfee as a single source for complete security portfolio spanning endpoint, network, data and risk & compliance offerings 60% Fortune 500 Penetration Trusted by Governments Around the World Tremendous Cross-sell Opportunity Public Sector Public Sector Retail, Services Manufacturing Distribution Retail, Services Manufacturing Distribution Healthcare and Pharmaceuticals Healthcare and Pharmaceuticals Financial Services Financial Services Misc. Verticals Misc. Verticals Public Sector Public Sector Retail, Services Manufacturing Distribution Retail, Services Manufacturing Distribution Healthcare and Pharmaceuticals Healthcare and Pharmaceuticals Financial Services Financial Services Misc. Verticals Misc. Verticals

IMPORTANT INFORMATION

Secure Computing Corporation (“Secure Computing”) intends to file with the Securities and Exchange Commission (the “SEC”) preliminary and definitive proxy statements and other relevant materials in connection with its proposed acquisition by McAfee, Inc. (“McAfee”). The proxy statement will be mailed to the stockholders of Secure Computing. Before making any voting or investment decision with respect to the transaction, investors and security holders of Secure Computing are urged to read the proxy statement and the other relevant materials when they become available because they will contain important information about the transaction, Secure Computing and McAfee. Investors and security holders may obtain free copies of these documents (when they are available) and other documents filed with the SEC at the SEC’s web site at www.sec.gov. In addition, investors and security holders may obtain free copies of the documents filed with the SEC from Secure Computing’s investor relations website at www.securecomputing.com/invest.cfm or by writing its investor relations department at 55 Almaden Boulevard, Suite 500 San Jose, CA 95113.

INFORMATION REGARDING PARTICIPANTS

Secure Computing and its officers and directors may be deemed to be participants in the solicitation of proxies from Secure Computing’s stockholders with respect to the transaction. A description of any interests that these officers and directors have in the transaction will be available in the proxy statement. In addition, McAfee may be deemed to have participated in the solicitation of proxies from Secure Computing’s stockholders in favor of the approval of the Agreement and Plan of Merger. Information concerning McAfee’s directors and executive officers is set forth in McAfee’s proxy statement for its 2008 annual meeting of stockholders, which was filed with the SEC on June 26, 2008. These documents are available free of charge at the SEC’s web site at www.sec.gov or by going to McAfee’s investor relations page on its corporate website at www.mcafee.com.