Analysis of a mifare ultralight hotel key card with a proxmark RDV4

playing with the proxmark rdv4 this morning analyzing hotel key cards. Note the default password on the ultralight card - makes copying card easy

• #sports
• #proxmark
• #mifare
• #mifare_ultralight
• #rfid
• #hotel_door_key
• #hacking
• #security
• #computer_security