Ensure your building access cards can’t be cloned or replicated
![KEY-ID FIDO U2f security key FIDO U2F security key with cap removed](https://www.key-id.com/wp-content/uploads/2017/01/key-id-encoder.png)
Who else has access to your access-control keys?
Organisations don’t share firewall passwords with anyone else, in order to keep out cyber-intruders. It’s all too common, however, that organisations using RFID cards for building access rely on key encoding known to many 3rd parties in the supply chain, and beyond.