San Jose, Calif., June 3, 2004 – F-Secure® Corporation (HEX: FSC), a leading provider of antivirus and security software, announced today that it has been selected by Charter Communications, Inc. (Nasdaq: CHTR) to provide managed antivirus and security software to Charter's High-Speed™ Internet Service customers. With operations in 37 states, Charter is a leading cable television operator in the United States, and a provider of high-speed Internet services.

“Individual consumers, as well as small businesses, often lack expertise or time to manage and update their computer security software,” said Travis Witteveen, Vice President of U.S. operations for F-Secure. “By working with companies like Charter to offer automated online security services, we help people avoid the ever-growing threat of computer viruses.”

“We continually look for ways to improve our products,” said Jeff Jay, Vice President of Product Development for Charter Communications. “Being able to offer simple, automatic antivirus and security protection is a real bonus for our customers and a huge differentiator for Charter.

“We chose F-Secure's hosted security services for three reasons: their technology is ideally suited for service providers like us. F-Secure has proven itself repeatedly with their track record of over twenty successful deployments worldwide. Finally, their world-class antivirus research lab has a track record of responding faster to new virus threats than many other Security Software providers.”

F-Secure's suite of services includes: antivirus protection, personal firewall, parental controls and anti-spam controls.

Charter is piloting the security protection services starting this month, and will soon offer the services to all of its 1.6 million high-speed data customers. For Charter's 3 meg customers, there will be no additional charge for the security services.

About Charter Communications
Charter Communications, Inc., a broadband communications company, provides a full range of advanced broadband services to the home, including cable television on an advanced digital video programming platform via Charter Digital™ and Charter High-Speed Internet Service™. Charter also provides business to business video, data and Internet protocol (IP) solutions through its Charter Business Division. Advertising sales and production services are sold under the Charter Media® brand. More information about Charter can be found at www.charter.com.

About F-Secure Corporation
F-Secure Corporation protects individuals and businesses against computer viruses and other threats coming through the Internet or mobile networks. Our award-winning solutions include antivirus, desktop firewall with intrusion prevention and network encryption. Our key strength is the speed of response to new threats. For businesses our solutions feature centralized management. Founded in 1988, F-Secure has been listed on the Helsinki Exchanges since 1999. We have our headquarters in Helsinki, Finland, and offices in USA, France, Germany, Sweden, the United Kingdom and Japan. F-Secure is supported by a global ecosystem of value added resellers and distributors in over 50 countries. F-Secure protection is also available through major Internet Service Providers, such as Deutsche Telekom and France Telecom.

More information may be found at www.F-Secure.com, or by calling 408.938.6700.