Sure enough, iOS 4.3.4 was released in an effort to stop the jailbreaking spree and fixed the PDF security hole, which was not only a potential security risk, but also the flaw in Apple's mobile platform that allowed for an untethered jailbreak to be performed. This is bad news for everyone who has been enjoying the advantages that come with setting your iPhone, iPad, or iPod touch free as it means that an untethered jailbreak for iOS 4.3.4 may not be released anytime soon.
How will the hacking community deal with the issue is not clear for now, but something tells us that it is only a matter of time until iOS 4.3.4 meets its match. Until then, it is advised for jailbreak enthusiasts to restrain themselves from updating until an untethered jailbreak gets released, or go with a tethered iOS 4.3.4 jailbreak and bear with the inconvenience of having to perform it every time their iDevice needs to reboot.
A tethered jailbreak using redsn0w can be downloaded from here.
source: Twitter via RedmondPie