Security dudes Sophos have commended Apple’s iOS 4.3 for addressing a number of known security issues, but point out that users of older devices are still exposed.
iOS 4.3 is compatible with the iPhone 3GS, iPhone 4, iPad, and 3rd and 4th gen iPod touch. However, users of the iPhone 3G, and 1st and 2nd gen iPod touch, won’t be able to install the new firmware.
Oh, and let’s not forget the original 2G iPhone. Not that there are many of them still around. Ahem.
Graham Cluley, senior tech consultant at Sophos, said: "If you have an earlier iPhone or iPod touch, your device is potentially vulnerable to attacks which could exploit these known security holes, and there is no official patch available for you to protect yourself.
"That's bad news for the very many people who still have an iPhone 3G, for instance. If you were looking for an excuse to upgrade your iPhone or iPod touch - maybe you've just been given a good one by Apple.”
Those “security holes” include malicious TIFF files and multiple memory corruption issues with WebKit.
You know what? Don’t go installing loads of dodgy crap on your iPhone and you’ll be fine.