The database is not accessible to the public, and the database administrator reported that there have not been any security breaches to date. The numbers themselves do contain intelligence. The Registry will be controlled through NTIS FedWorld subsystems. One subsystem handles communications, security checks, screen control, editing, etc. There is a secure firewall protecting the database.
Updates require a higher-level password.
Additional security techniques are under investigation. The numbers themselves do contain intelligence. Compatibility, expandability Since the numbers have been used to identify all taxpayers and employers since 1961, there is a strong likelihood that the system will run out of new numbers in the near future. A five-digit number can only uniquely identify up to 99,999 entities. New numbers are issued in a timely manner.