In 60 seconds, security researchers can clone the master hotel-room keys for 140,000 hotels in 160 countries

The Vingcard Vision locks are RFID-based hotel locks; at this week's Infiltrate conference in Miami, Tomi Tuominen and Timo Hirvonen from F-Secure will present a method for combining a $300 Proxmark RFID tool with any discarded key from a given hotel to derive the master keys that allow them to unlock every room in the hotel, a process that takes less than 60 seconds. Read the rest