Comment Re:The problem is false negative (Score 1) 383
Notice that most of these weren't fingerprint scanners or retinal scanners-- they were stuff like gait monitors, or even more bizarre stuff, like listening to your heartbeat. So, if you twist your ankle--or even buy a new pair of shoes-- you're out of luck.
Other clothing changes could affect gait. As could anything else you are carrying both in pockets or in your hands.
Taking pseudoephedrine for a cold? Ooops, your heartrate is different. You're locked out.
Plenty of other things can affect your heart rate, no drugs required.
Other clothing changes could affect gait. As could anything else you are carrying both in pockets or in your hands.
Taking pseudoephedrine for a cold? Ooops, your heartrate is different. You're locked out.
Plenty of other things can affect your heart rate, no drugs required.