Apple has released an update for the iPhone 3.0 operating system after hackers uncovered a serious security flaw with the smartphone’s SMS software.
The vulnerability allowed a hacker to take control of a target phone simply by sending a coded text message.
Once the iPhone was under the hacker’s control, they could install malware or use the phone as a spam-attack bot.
Ethical hackers Charlie Miller and Collin Mulliner uncovered the flaw earlier this week at the Blackhat security conference.
The iPhone security patch, OS 3.0.1, is available for free download from the iTunes store.
“Receiving a maliciously crafted SMS message may lead to an unexpected service interruption or arbitrary code execution,” Apple said in a security note.
“This update addresses the issue through improved error handling.”
An Apple spokesperson said no hackers were able to take control of an iPhone in the time it took to develop the update.