USA Today reports that researchers announced on Wednesday that some computers equipped with wireless technology are vulnerable to malicious software that would enable hackers to commandeer a machine, even if it wasn’t online at the time. Researchers planned to demonstrate this fact at a computer-security conference by taking complete control of a MacBook. However, researchers David Maynor and Johnny Ellch say that one could do this on an array of computers, even computers with Windows and Linux-based operating systems. Maynor said that the technique involves dropping a “root kit” into laptops while they are in use in public. This kit is a virtually undetectable program, that can be use to log passwords etc. The machine would not need to be connected to the internet to be infected, all it would need is the root kit to be installed and certain wireless devices enabled and turned on…