I use them for all my credit/ID/etc. cards now. They should lower the maximal distance for reading so that someone has to be super close to your card to read an

I use them for all my credit/ID/etc. cards now. They should lower the maximal distance for reading so that someone has to be super close to your card to read anything. It's not 100% but for practical purposes should be sufficient (e.g. rogue RFID reader at the airport reading all passing by cards from 1m distance etc.)