On top of these, there need to be hacker-proof layers of authentication and password protection so that only the right people get access.

ECONOMIST: IT in the health-care industry

In a decade's time, Bishop predicted an "electronic nose" would be able to detect the pheromones that make up individuals' scent, and could even be used as a "hacker-proof" security system, replacing pin numbers and passwords.

CNN: Phones will soon be able to smell