For all you Speedpass users out there... PANIC! No, don't panic actually..

Excerpt: "Faraday shielding offers a short-term, partial remedy. In particular, users may encase their DSTs in aluminum foil or some suitable radio-reflective shielding when not using them. This would defend against active scanning attacks, but not against passive eavesdropping."

Are you thinking what I'm thinking? I can't tell, this foil is suffocating. Cheers, -Pk

Good read. Thanks, PK.

Analysis of the Texas Instruments DST RFID (e.g. Speedpass)