Few hours ago, Apple has released an update for iPhone 3.0 firmware, i.e. iPhone 3.0.1. The new firmware update is a fix for SMS vulnerability which was discovered by Charlie Miller.
It is recommended to update iPhone and iPod Touch as this update will secure your device from SMS virus attack.
Apple on iPhone OS 3.0.1 -
This update is only available through iTunes, and will not appear in your computer’s Software Update application, or in the Apple Downloads site. Make sure you have an internet connection and have installed the latest version of iTunes from www.apple.com/itunes/iTunes will automatically check Apple’s update server on its weekly schedule. When an update is detected, it will download it. When the iPhone is docked, iTunes will present the user with the option to install the update. We recommend applying the update immediately if possible. Selecting “don’t install” will present the option the next time you connect your iPhone. The automatic update process may take up to a week depending on the day that iTunes checks for updates. You may manually obtain the update via the “Check for Update” button within iTunes. After doing this, the update can be applied when your iPhone is docked to your computer.
The new firmware update comes with 230MB file, which clearly indicates that there might be many other useful features included in this update. If you don’t want to face any virus issues then you’ll have to update your device with iPhone 3.0.1 firmware.
It is being said that this firmware update may break the jailbreak for iPhone. So, don’t mess with your device. The iPhone Dev team will provide some instructions very soon.
Download iPhone OS 3.0.1
As stated by Apple team, you can download and install the update through iTunes.


[...] on this topic. As we know, Apple has released a security firmware update of iPhone firmware. The iPhone OS 3.0.1 fixes SMS vulnerability, which secures the iPhone from [...]
Except for the SMS vulnerability, there is no other fix, neither are there any new features. The filesize is because its a dump of entire OS, not a patch. Please research, before posting.
Yes, I agree with you. Actually, this post was written when iPhone 3.0.1 firmware announced by Apple team and they didn’t provide any information about the firmware.
I read some popular blogs which were claiming that this firmware has few security fixes and new features.
I do research on the topic before posting on this blog.
Anyway, thanks for the heads up. I’ll definitely work on your suggestion.
Except for the SMS vulnerability, there is no other fix, neither are there any new features. The filesize is because its a dump of entire OS, not a patch. Please research, before posting.
Yes, I agree with you. Actually, this post was written when iPhone 3.0.1 firmware announced by Apple team and they didn't provide any information about the firmware.
I read some popular blogs which were claiming that this firmware has few security fixes and new features.
I do research on the topic before posting on this blog.
Anyway, thanks for the heads up. I'll definitely work on your suggestion.
[...] we know, Apple has released a security firmware update of iPhone firmware. The iPhone OS 3.0.1 fixes SMS vulnerability, which secures the iPhone from [...]