Re: key loggers
It takes social engineering to install rootkits, malware, viruses and key loggers on Linux. You have to convince the user to enter their root password to install the object. User-space, kernel-space, hardware-space are all seperate in Linux. Drive-by infections don't occur in Linux because of this and the fact that Linux doesn't support Active-x controls.
There have been some Linux and Unix viruses throughout history but in every case the server admins did not patch their systems or follow best-practices for securing servers.
For desktop computers, even though we have almost the market share of Apple systems, we still have not seen infections. Despite what the Microsoft horde will tell you, this is not due to lack of targets because of small market-share. People are trying to infect Linux systems because it would be big news when somebody actually accomplished infecting a Linux system with a virus or spyware. It is the structure of Linux that makes writing viruses difficult.
Unless someone who knows your root password sat down at your computer and installed a key-logger; you don't have one.
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