That should worry those relying on biometric security measures. What this essentially means is that if a database containing iris codes were hacked, the hackers could construct iris images that would dupe scanners, and they would never even have to get near the actual owner of that iris. Moreover, the hackers wouldn't even necessarily have to hack the database of the entity they wish to compromise. Consider a defense contractor whose iris can access both facilities at his firm as well as restricted areas of a military base. Someone wishing to access the military base could hack the defense contractor, steal the iris code, reconstruct the iris, print it to a contact lens, and access the military facility. It's all very Mission Impossible, but according to the research, it's not so very far-fetched.