I don’t subscribe to being tracked and sold by mega-corps, so I spent a few hours hacking a solution. Didn’t read the terms and conditions? You might assume that free airport WiFi is subsidised by flogging ‘customer analytics’ (your personal information) to hotels, restaurant chains and whomever else wants to know about you. If you’ve ever put your real name into one of those Craptive Portals on a WiFi network you’ve now tied your identity to that MAC address. The snag with this design is that your unique, unchanging MAC address is just perfect for tracking you. It’s how networking works: any time you connect to a WiFi network, the router uses that address to send and receive packets to your machine and distinguish it from other devices in the area. It’s possible to limit this tracking by using pseudo-random MAC addresses.Įvery network device like a WiFi or Ethernet card has a unique identifier called a MAC address, for example b4:b6:76:31:8c:ff. That data can be shared and sold, and often identifies you as an individual. Your device’s MAC address can be used to track you across the WiFi networks you connect to. Paul Fawkesley Paul Fawkesley December 2017 Randomize your WiFi MAC address on Ubuntu 16.04
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