[Barryng]

Over the past five years or so news articles about the relative ease of stealing cars with keyless locks and ignitions appear with increasing frequency. Briefly, with somewhat easily obtainable electronics, the FOB, even if a few hundred feet away like in ones house or pocket as you sit in a nearby restaurant, is made to electronically appear adjacent to the car and the car can be entered and started in much less than a minute. The only real defense is to keep the FOB enclosed in a metal container (Faraday Cage - Aluminum foil works) but this is not very practical or convenient. Since I have two cars (2016 BMW X3 & 2019 Boxster) that can be unlocked and started without handling the key fob, I just did a Google search to see if the manufacturers have done anything to prevent this type of theft. Except for one article, the only thing I was able to find were many news articles discussing the problem. The one article is dated 8/9/19 at https://www.digitaltrends.com/cars/car-thieves-using-code-grabber-technology-to-steal-high-end-cars/. This article stated "Some brands — including BMW and Mercedes-Benz — use motion detection sensors to turn the fob off when it’s not being used, like when it’s on your kitchen table."

So, does Porsche use this motion sensing technology and, if so, what year/models sport this enhanced security feature? I would be willing to purchase a new FOB if that is all it takes to disable the FOB to reduce the risk of it being read remotely. My cars live in my garage when home so my concern really only applies as a random target away from home.

 

[CaymanMatt]

You can tell your car to only open with a physical push of the FOB button rather than with the handle pad. I believe you need to first lock your car then push both lock and unlock buttons on the FOB at the same time. I have tried this and it does work. I do not know what happens if someone somehow gets in the car (breaks window, jimmies,...) and then tries to start it with the dongle. However, there is a way to remove that also.
This has been discussed before so you may want to do a search.

 

[JazzCatGab]

Over the past five years or so news articles about the relative ease of stealing cars with keyless locks and ignitions appear with increasing frequency. Briefly, with somewhat easily obtainable electronics, the FOB, even if a few hundred feet away like in ones house or pocket as you sit in a nearby restaurant, is made to electronically appear adjacent to the car and the car can be entered and started in much less than a minute. The only real defense is to keep the FOB enclosed in a metal container (Faraday Cage - Aluminum foil works) but this is not very practical or convenient. Since I have two cars (2016 BMW X3 & 2019 Boxster) that can be unlocked and started without handling the key fob, I just did a Google search to see if the manufacturers have done anything to prevent this type of theft. Except for one article, the only thing I was able to find were many news articles discussing the problem. The one article is dated 8/9/19 at https://www.digitaltrends.com/cars/car-thieves-using-code-grabber-technology-to-steal-high-end-cars/. This article stated "Some brands — including BMW and Mercedes-Benz — use motion detection sensors to turn the fob off when it’s not being used, like when it’s on your kitchen table."

So, does Porsche use this motion sensing technology and, if so, what year/models sport this enhanced security feature? I would be willing to purchase a new FOB if that is all it takes to disable the FOB to reduce the risk of it being read remotely. My cars live in my garage when home so my concern really only applies as a random target away from home.

Found this but don't know how long the fob has had the motion detector, or if they all do (one would assume so).

However, I do keep my keys in a Faraday pouch when they aren't in use. Mine isn't a DD so the keys spend most of their time stored thusly.