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The Cisco Secure Desktop Onscreen Keyboard (OSK) is a great utility that presents an onscreen keyboard when users attempt to type in their password for authentication of a WebVPN session. This feature mitigates the effects of both hardware- and software-based keyloggers. Whereas many software-based keyloggers can be detected by CSD, newer releases of this malware may go undetected, and hardware-based keyloggers can be very difficult to detect. Therefore, the OSK is an excellent mitigation technique.