Secure Sockets Layer (SSL) VPN is an emerging technology that provides remote-access VPN capability, using the SSL function that is already built into a modern web browser. SSL VPN allows users from any Internet-enabled location to launch a web browser to establish remote-access VPN connections, thus promising productivity enhancements and improved availability, as well as further IT cost reduction for VPN client software and support. Additional VPN background information is widely available. This paper addresses security issues and challenges associated with SSL VPN, including general VPN security and specific SSL VPN security, as well as endpoint device security and information protection. Security mechanisms that can be used for risk mitigation are also discussed.
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