Apple has plugged a hole in the iOS software that runs iPhones, iPads and iPod Touch music players that could allow hackers to take remote control of those devices.
The security flaw came to light two weeks ago as the Web site www.jailbreakme.com released code that Apple customers can use to modify the iOS operating system in order to jail-break iPhones.
The jail breaking code exploited a vulnerability in iOS that had not previously been disclosed. Its release gave criminal hackers a blueprint they could use to build malicious software that would exploit the vulnerability.