Another 'innovation' courtesy of DefCon is the ability to compromise the firmware of an Apple keyboard, which can give the hacker total access to the attached system. From keylogging to rootkits to total remote control, the sky's the limit for a system compromised by this hack. To infect your keyboard, the attacker only needs to exploit one of the many weaknesses in Mac OS X and Apple applications. Once exploited, the attacker only needs to drop less than 100 KB of payload to infect the keyboard and the attack takes less than 18 seconds.