On Wednesday, Apple released iOS 4.0.2 that comes with a security fix for PDF exploit. For those who need jailbreaking, as mentioned in previous post, it is advised not to upgrade to this version of iOS. Otherwise, you will lose jailbreaking once upgraded. However, that means your jailbroken iPhone is vulnerable to PDF attack.
Thanks to Jay Freeman, the creator of cydia. He has developed a PDF fix to patch the security hole. This fix is specially designed for jailbroken iPhone running any iPhone OS version (including 2.x, 3.x, 4.0 and 4.0.1).
With this patch, you have the best of both worlds. You can keep your iPhone jailbroken. At the same time, the phone is secured from malicious attack.
If you are using jailbroken iPhone, act now and install the PDF patch. To apply the patch, you can simply follow the procedures: