 Devices connected to the Internet are not limited to user-owned computing devices like smartphones. Many devices contain chips and/or are connected in the so-called Internet of Things. RFID (radio frequency identification) chips can be read from a limited distance, such that you can hold them in front of a reader rather than inserting them. EU and US passports have RFID chips with protected biometric data, but information like the user’s nationality may easily leak when attempting to read such devices (see Richter, Mostowski &amp; Poll 2008, in Other Internet Resources). “Smart” RFIDs are also embedded in public transport payment systems. “Dumb” RFIDs, basically only containing a number, appear in many kinds of products as a replacement of the barcode, and for use in logistics. Still, such chips could be used to trace a person once it is known that he carries an item containing a chip.