> A heat-sensing infrared detector monitored the terrace, > but he approached it slowly from behind a large, > homemade polyester shield. The low ther

> A heat-sensing infrared detector monitored the terrace, > but he approached it slowly from behind a large, > homemade polyester shield. The low thermal > conductivity of the polyester blocked his body heat > from reaching the sensor "Out of the box" thinking at its best. > An automatic electric pulse constantly shot into the > room and back out along these wires. If any of the > sensors were tripped, the circuit would break. When a > pulse shot into the room, it expected an answer. If > it didn't get one, it activated the alarm. > Once the copper wires were exposed, he clipped a new, > precut piece of wire between the inbound and outbound > cables. This bridge rerouted the incoming electric > pulse over to the outbound wire before the signal > reached the sensors. It no longer mattered what > happened further down the line. The sensors were out > of the loop. It was now safe for the others to enter. In hindsight it seems like sending pulses with different signatures down each channel would have fixed this problem. I wonder how many sensors out there are infected with this bug.