Are catalytic converters easy for thieves to steal?

Is the catalytic converter on a 2014 SEAT Leon fairly easy to steal?

Why don't keyless keys have an on/off switch?

It seems that keyless entry cars are being stolen at an alarming rate and that you recommend Faraday bags to put the keys in. Is there some technical reason why the keys just don't have an on/off switch...

Is keyless theft a genuine problem on new cars?

Keyless hacking is in the news a lot. How real is it? I understand there are three types of keyless systems - ones that unlock the doors but still have a key to start the car, ones that unlock the car...

How can I improve the theft protection on my keyless car?

Can you suggest some ways to make my keyless entry car less vulnerable to theft?