Security holes don't always originate in relatively recent bugs... sometimes, they can stem from code written in an entirely different era. Researchers at Vectra Networks have discovered a roughly 20-year-old flaw in Windows Print Spooler (which oversees the printing process) that lets attackers slip malware on to a PC. As the spooler doesn't verify that a printer's drivers are legitimate when you plug the hardware in, it's possible for attackers to install maliciously-coded drivers thorough either the internet or the printer itself. The exploit can not only infect numerous computers if it's shared on a network, but keep infecting as computers discover the peripheral.