Archive for September 23rd, 2008

You probably know about latest iPhone’s security issue. The good news is that there is a solution to fix it.

Jonathan Zdziarski has deviced a way to disable this writing to disk, so that screenshots cannot be recovered. On a jailbroken iPhone, you can disable these screenshots with the following commands in MobileTerminal or through SSH connection to iPhone:

# rm -rf /var/mobile/Library/Caches/Snapshots

# ln -s /dev/null /var/mobile/Library/Caches/Snapshots

Screenshots themselves actually get written to /var/mobile/Library/Caches/Snapshots. So these commands delete this folder and symlink it to /dev/null, so the screenshots don’t get written to disk.

The side effect to this is that when resuming an application, you’ll get the default screen in the zoom-in effect. Once the application resumes, however, you’ll have your application screen back. For example, your mail application will always zoom to the front as if you had an empty inbox, but will quickly correct itself once the application resumes.

“To return to the default behavior, just delete the symlink and the directory will get recreated. Mind you, this has no effect on the many other pieces of data stored on the iPhone, and therefore your iPhone will always be at risk for leaking private data, especially to seasoned forensic examiners. Use at your own risk.”

via iphoneatlas