Whats a backdoor?
A backdoor in a computer system (or cryptosystem or algorithm) is a method of bypassing normal authentication or securing remote access to a computer, while attempting to remain hidden from casual inspection. The backdoor may take the form of an installed program (e.g., Back Orifice or the Sony/BMG rootkit backdoor installed when any of millions of Sony music CDs were played on a Windows computer), or could be a modification to a legitimate program.
