If you operate a web hosting provider and provide Horde based webmail access, I recommend providing a virtual keyboard in order for your users to enter their passwords securely.
A virtual keyboard is a software application which allows a user to enter characters via an onscreen keyboard. Unlike typing a password using a hardware keyboard, a virtual keyboard cannot be logged using a keystroke logger.
The follow instructions outline the process of adding a virtual keyboard to the webmail login interface. A example of this can be found at: http://webmail.md3v.com.
Note: These instructions have been tested on Plesk 9.5.2 with Horde 3.3.6.
1. Download my Virtual Keyboard build from: http://www.md3v.com/dl/Virtual_Keyboard.zip.
2. Upload the “keyboard.css”, “keyboard.js” and “keyboard.png” files to your Plesk server.
3. Copy “keyboard.css”, “keyboard.js” and “keyboard.png” to:
/usr/share/psa-horde/imp
4. Make a backup of the original Horde login template: Continue reading “How to add a virtual keyboard to Horde Webmail in Plesk 9.x”