- TOFU: Trust on first use (https://en.m.wikipedia.org/wiki/Trust_on_first_use)
- SSHFP: SSH FingerPrint record in the domain name system (https://en.m.wikipedia.org/wiki/SSHFP_record)
- MITM: Man in the middle (https://en.m.wikipedia.org/wiki/Man-in-the-middle_attack)