And understanding how an exploit works may be the only way to figure out a way to protect against it, by finding out how to set up a firewall or which bits of software to disable.

BBC: How digital Armageddon was averted

That includes letting you register your dominant eye when you set up the camera, which will in turn automatically disable the portion of the screen more likely to be touched when you go to take a shot using the viewfinder.

ENGADGET: Canon patent application points to touchscreen DSLRs