[crdoconnor]

I imagine they'll use NFC not wifi. I don't think it would be hard at all to make it more secure than existing key cards.

[ben1040]

I stayed at a Hilton property maybe a month or two ago and they already had converted the door locks over to use NFC. The room keys were your typical keycard size, except they had no magstripe and there was an NFC tag embedded within the card.

I assume the next step would be for them to deploy a phone app which emulated the NFC tag.