The cost is "quite low" relative to the value of property and information that may be protected by this type of device. Also, 3-7 hours for a typical attack ti

The cost is "quite low" relative to the value of property and information that may be protected by this type of device. Also, 3-7 hours for a typical attack time is notable because it fits into a typical human sleep cycle. You could pick the target's pocket on the way out of the office, and return the card as "lost and found" the next morning.