iOS 4.0.2 is released to protect PDF exploit security hole!

Who cares right? Well, this update is meant to address a security hole used by hackers to “jailbreak” the iPhone. The PDF exploit could also be used by hackers to gain remote control over an iOS device. So those who don’t want to be hacked, or do not care about jailbreaking an iPhone, its better to install iOS 4.0.2 instead of ignoring it.

Hacking can allow unauthorized (and sometimes unwanted) code into your iPhone device. Some hackers may want this code for their own use – as in jailbreaking their iPhone. Some Hackers may use it to breach security on other people’s devices which is a huge issue.

In this case, it is a “PDF exploit”. A PDF exploit is a flaw in the way the iOS handled PDF documents. It could allow an attacker to gain control over an iPhone and run unauthorized code on someone’s device. That’s what Comex did to jailbreak devices so users could install third-party apps that aren’t available through Apple’s iTunes-based App Store.

“Jailbreaking” an iPhone to install 3rd party apps may be what some owners want, but a PDF exploit can be used for more malicious intent such as stealing/lifting or deleting data from an owner’s iPhone/iPod Touch/iPad.

This patch, released in iOS 4.0.2 should protect iPhones from the PDF exploit, although it also means that jailbroken iPhones will lose their access to the unapproved 3rd party apps on their phone. If you users want to jailbreak their iPhone, do not install the patch because you won’t be able to.

For those worried about security, it is a good idea to install iOS 4.0.2 because of the serious nature of the exploit.

Just connect your iPhone to your computer and click on the device in iTunes. Click on Check for updates and chose to download and install iOS 4.0.2 for the iPhone 3GS, iPhone 4 and 2nd & 3rd gen iPod touch, or iOS 3.2.2 for the iPad.

Related Article:
How to update your iPhone OS

About Glenn Magas