I'm assuming it attenuates the signal so that someone parked nearby has a more difficult time capturing the code. Downside is you can't use your remote start fr

I'm assuming it attenuates the signal so that someone parked nearby has a more difficult time capturing the code. Downside is you can't use your remote start from inside the house anymore - you'll have to be very close before the remote will work (which raises the question of what good is having a remote if you're close enough to just use the physical key). But with the faraday pouch, at least the car won't have been stolen. For the MITM attacks on the modern proximity car keys, drop your fob into a metal tin (like the Danish Butter Cookie ones) when you walk in the house to block the signal. https://www.schneier.com/blog/archives/2017/11/man-in-the-midd_8.html https://www.schneier.com/blog/archives/2017/11/man-in-the-mi...