Notes: The average updates/day for each Antivirus program are shown below. The average number of daily updates were calculated over a 5 day period. The more updates per day, the better the antivirus program is considered to be.

Antivirus Versions Tested: Norton Antivirus 2009, ESET NOD32 Antivirus 4, Avira AntiVir Premium Version 9, Avast! AntiVirus Professional 4.8, Kaspersky AntiVirus 2009, BitDefender AntiVirus 2009, McAfee VirusScan Plus 2009, AVG Anti-Virus 8.5, F-Secure Anti Virus 2009, & Trend Micro AntiVirus 2009 (Version 17).

Graph compiled June 19, 2009.