Apple forced to quickly respond as security breach allows a simple bypass of passwords

Apple has responded quickly to a security blunder in its flagship iPhone product line by announcing a fix in its November update. A security flaw in its iOS 4.1 operating system lets users have access to the address book, voicemail and call history even if a password is in place.

The iOS 4.1 operating system is used in the iPhone 4, the iPhone 3GS and the iPhone 3G.

The problem caused major embarrassment to the vendor around the world and highlights security concerns with the popular device. The simple exploit was first discovered by a Brazilian iPhone user and posted to the Internet in a video.

Apple promised a quick resolution to the problem in a statement provided to Wired.com.

"We’re aware of this issue and we will deliver a fix to customers as part of the iOS 4.2 software update in November," it said.

The Apple iPhone has experienced a host of problems since its launch in July. Many users have reported problems with the proximity sensor and the company was forced to provide free cases to users to stop complaints about sudden signal dropouts.