Smith Micro Launches Checkito Firewall, Offering Revolutionary Personal Intrusion Defense

Bi-Directional Protection Stops Unauthorized Intruders as Well as Unwanted Outflow of Passwords,

Credit Card Numbers, Other Personal Data Via “Guilty Until Proven Innocent’ Approach

Aliso Viejo, CA – (August 20, 2001) – Smith Micro Software, Inc. (NASDAQ: SMSI), a developer and marketer of a wide range of utility software and service solutions, today announced the launch of CheckItO Firewall, a user-friendly PC firewall solution with revolutionary intrusion defense technology. CheckIt Firewall employs a unique “Guilty Until Proven Innocent’ approach to quickly and effectively prevent unauthorized Internet intrusion while also controlling outbound communication of personal or sensitive data, giving individuals powerful yet inexpensive protection for Web- or network-connected PCs.

“With the advent of cable modems and DSL connections, firewall security is a must for anyone using the Internet,” said Doug Deck, Director of Channel Sales for Smith Micro. “CheckIt Firewall provides the maximum amount of protection without unnecessarily interrupting normal computer or Web activity. What’s more, CheckIt Firewall’s reporting features make it easy to spot intrusion attempts in real-time or via a log file.”

Designed to provide “always on” safety, CheckIt Firewall delivers unobtrusive, highly customizable and enforceable security protection by constantly operating in the background of any PC or server. It controls access to the user’s communication ports and monitors any port-scanning activity from external sources, Web-based or otherwise.

Security rules are pre-set for simple default operation; however, users can easily customize CheckIt Firewall for specific applications, trusted IP addresses, ports, or protocols. Schedules can be pre-set as well, allowing different security rules at different times. CheckIt then monitors inbound and outbound activity, detecting and blocking intrusion attempts that do not match known profiles in real time.

“CheckIt Firewall’s “Guilty Until Proven Innocent’ approach means it doesn’t bog down system performance by sorting through a list of known signatures with every transmission,” Deck said. “It’s fast, thorough, and highly configurable for power users, yet also extremely user-friendly for inexperienced Web-surfers. CheckIt Firewall gives peace-of-mind to anyone concerned about keeping their data and Web activity private.”

Exclusive Reporting Features

When an intrusion attempt is detected, CheckIt Firewall blocks the intruder, immediately notifies the user, and adjusts the network connection to prevent further attack. Notification takes place via the System Tray icon, pop-up window, or email report. The software also allows the user to trace the route of an intrusion and locate its source via the Who-Is feature.

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CheckIt Firewall’s logging and reporting features provide an exclusive and valuable level of protection. They enable users to “see’ into their system and fine-tune their system security posture to match their own usage patterns.

For anyone who works, banks, games or chats over the Internet or private networks, CheckIt Firewall provides protection against data compromises, Trojan Horse assaults, Denial of Service attacks, and many other kinds of security risks. Whether at home, on the road, behind a corporate firewall, via dial-up or always-on broadband connection, CheckIt Firewall offers complete confidence that business, personal, financial and other data will stay safe and secure.

Immediately Available

CheckIt Firewall is suitable for any PC with Pentium 133 or higher processor and 10MB free disk space. It requires 32 MB RAM and at least one network adapter or modem, Internet Explorer 4.0 or later, and Windows 95/98/ME/2000 or NT 4.0 with SPS or later.

Estimated street price for CheckIt Firewall is $39.95; owners of any other CheckIt product, as well as any Norton or McAfee product, qualify for a $10 mail-in rebate. CheckIt Firewall is available for purchase through leading computer retailers and via the Smith Micro Web site,

About Smith Micro Software:

Smith Micro Software, Inc., headquartered in Aliso Viejo, CA, is a developer and marketer of wireless communication and utility software products. The company designs integrated, cross platform, easy-to-use software for personal computing and business solutions around the world. With a focus on the Internet, Wireless, and Broadband technologies, the company’s products and services enable eCommerce, eBusiness, Internet communications (voice-over-IP), video conferencing, wireless communications, and network fax, along with traditional computer telephony. Smith Micro’s complete line of products is available through direct sales, retail stores, value-added resellers (VARs) and original equipment manufacturers (OEMs). Smith Micro’s common stock trades on The Nasdaq Stock MarketĀ® under the symbol SMSI. For more information, contact Smith Micro at (949) 362-5800.

This release may contain forward-looking statements that involve risks and uncertainties, including without limitation, the company’s projected return to profitability in the third or fourth quarters as well as an increase in business for our Internet Solutions Division. Among the important factors that could cause actual results to differ materially from those in the forward-looking statements are new and changing technologies and customer acceptance of those technologies fluctuations or cancellations in orders from distribution customers, and the company’s ability to compete effectively with other software companies. These and other factors that could cause actual results to differ materially are discussed in the company’s filings with the Securities and Exchange Commission including its recent filings on Forms 10-K and 10-Q.

Smith Micro, the Smith Micro logo, and CheckIt are trademarks or registered trademarks of Smith Micro Software, Inc. All other trademarks are the property of their respective owners.

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