We're only halfway through April and there are already too many vulnerabilities to count. This month released a false-positive virus definition that affected a number of innocent websites. Then, for their monthly Tuesday patch, Microsoft released 17 new security bulletins which addressed 64 vulnerabilities. Also, two days later, Apple released four security updates which cover software updates for iOS 3.0 through 4.3.1, Safari 5.0.5, and a security update to the Certificate Trust Policy for iOS.

On April 11th avast! released a false-positive virus definition in update 110411-1 containing an error that caused a number of innocent websites to be flagged as infected. According to an update on the , "all sites with a script in a specific format were affected." After the bad update was released Avast's virus lab staff quickly discovered the problem and immediately started working on a fix. Update 110411-2 (which fixes the problem) was released about 45 minutes after the false-positive was released.

As always, you should strive to keep your virus definitions updated. If you are using avast! be sure to enable the "Automatic Update" feature to get the latest virus definitions and bug fixes as quickly as possible. If you are using manual update, you can obtain the most up-to-date version of avast! by going to selecting the "Engine and Virus Definitions" option from the Update menu within the avast! taskbar. For more information on this issue, visit the avast! blog .