Private whois services

Every domain registrar maintains a publicly viewable database that displays contact information for every registered domain. Private 'whois' services display alternative information, such as their own company data, rather than the owner of the domain. [1]

ID: T1305

Tactic: Adversary Opsec

Version: 1.0


Detectable by Common Defenses (Yes/No/Partial): Yes

Explanation: Algorithmically possible to detect COTS service usage or use of non-specific mailing addresses (PO Boxes, drop sites, etc.)

Difficulty for the Adversary

Easy for the Adversary (Yes/No): Yes

Explanation: Commercially available or easy to set up and/or register using a disposable email account.


  1. Mandiant. (n.d.). APT1: Exposing One of China’s Cyber Espionage Units. Retrieved March 5, 2017.