Anti-keylogger or key scrambler for Linux?
 

I have been using Ubuntu 12.04 for a short while now in the hope of ultimately getting rid of Windows altogether. One application I am using in Windows XP Home is KeyScrambler Pro by QFX Software www.qfxsoftware.com. I was wanting to know is if there is any similar product that can be used in Linux/Ubuntu? I keep seeing, and reading, "STUFF" that Linux (Ubuntu) is not easily hacked and/or infected by viruses/malware/trojans/keyloggers/etc. Maybe I am just being a bit paranoid. I just want to protect myself from attacks (if at all possible). I asked QFX quite a long time ago if they were possibly creating a "keyscrambler" product for Linux. However, I don't believe that they are going to have such a product any time soon, if at all. Anyway, thanks for listening.

not really needed
unless you suspect that someone that has physical access to the computer will install something
in "single user mode" or has your root password

To put a different twist on the subject, especially when it comes to Windows software, how do you know that KeyScrambler Pro by QFX isn't in fact some form of Trojan designed to capture critical information and phone it home?