If you wish the domain ownership information to be private, add WhoIs Privacy Protection to your domain. This hides your personal information from the general public.
To add privacy protection to your domain, do so within your registrar account. NameBright offers WhoIs Privacy Protection for free for the first year, and then for a small fee for subsequent years.
Whois information is not updated immediately. It typically takes several hours for Whois data to update, and different registrars are faster than others. Usually your Whois information will be fully updated within two days.