The U.S. Department of Homeland Security ran a test this year to see how hard it was for hackers to corrupt workers and gain access to computer systems. Not very, it turned out.
Staff secretly dropped computer discs and USB thumb drives in the parking lots of government buildings and private contractors. Of those who picked them up, 60 percent plugged the devices into office computers, curious to see what they contained. If the drive or CD case had an official logo, 90 percent were installed.
"There’s no device known to mankind that will prevent people from being idiots," said Mark Rasch, director of network security and privacy consulting for Falls Church, Virginia-based Computer Sciences Corp. (CSC)
— Human Errors Fuel Hacking as Test Shows Nothing Stops Idiocy
In short, the best defense against cyber attack includes user education.