Antivirus companies warned on Thursday of a new virus that communicates through digital images, but security experts aren`t sure how much of a threat this latest evolutionary branch of malicious code poses. Dubbed the first “JPEG infector” by security company Network Associates, the W32/Perrun virus has two parts: infected JPEG images that contain the virus`s payload and a viral program that extracts the code from the images and infects other JPEGs on the system as they are opened. Full Story