Abstract: Methods and apparatus for secure access generally comprise a secure interface operating in conjunction with a remote computer and a target machine. The secure interface may provide access to the target machine by the remote computer. The secure interface may comprise a signal transfer system configured to be coupled to the target machine. The signal transfer system may transfer native human I/O signals, but does not transfer files and does not transfer networking signals. The signal transfer system may provide the only couplings to the target machine. The secure interface may also include a network interface coupled to the signal transfer system.