Update your devices - Apple has just released a security update to push us to 4.3.5. Connect your device to iTunes and click on Update.

 

iOS 4.3.5 Software Update

 

Fixes a security vulnerability with certificate validation.

 

Products compatible with this software update:

• iPhone 4 (GSM model)

• iPhone 3GS

• iPad 2

• iPad

• iPod touch (4th generation)

• iPod touch (3rd generation)

 

For information on the security content of this update, please visit this website:

http://support.apple.com/kb/HT1222