About one in 91 e-mail messages contained a virus or other types of bad software, Sophos says. About 81 percent of the new bad software Sophos sees circulated on the Internet is this kind of program. Most common malware so far for 2006 is Sober-Z, a worm that was active only for the first six days of the year. Many consumer computers lack antivirus software, making them ripe targets, expert says. Mytob virus, Netsky-P and Zafi-B most common piece of malware, have been around for years.”]
Source: https://www.csoonline.com/article/2121357/sophos–e-mail-virus-count-down.html