Sticker technology?

Does anyone have any idea what of technology this sticker uses? I recently purchased a pricey monthly subscription car wash package. The service guy put this sticker on my windshield; I asked if could apply this to another car and he said yes. Fast forward a couple weeks and they’ve been dodging me to get my second vehicle a sticker. Looking to clone this sticker’s signal somehow— when I pull up to the car wash there’s this satellite dish looking thing above the entrance and it scans the sticker and lets me in. I’ve tried a cheap RFID reader and writer but it didn’t pick up any signals from the sticker. Any suggestions? submitted by /u/Otwasocks [link] [comments]

from hacking: security in practice https://ift.tt/X7RVtG9