Signal usernames: phone number privacy guide

Separate your username, profile name and registration method

A username helps someone initiate contact; a profile name is what appears in conversations. Renaming your profile does not create a username, and sharing a username does not automatically change your number settings. Check both before putting a contact link on a public page. [1]

The starting point for this article was Naomi Brockwell TV’s YouTube video Enable THIS Setting If You Use Signal!. Its public description and chapters raise useful questions about setup, discovery and privacy limits. We checked those questions against current documentation rather than treating a 2025 interface as a current specification.

Two number settings answer different questions

If friends should still find you by number, you can hide its display while retaining number discovery. If you mainly accept new contacts through a public page, consider setting both controls to Nobody and sharing a username separately. Prepare that alternative contact route before switching discovery off. Menu wording may vary by language. [3]

No setting can retrieve information already saved elsewhere. Someone’s address book, previous screenshots and other services may still contain your number. Think about future disclosure and existing knowledge separately when deciding whether a setup meets your needs.

Set up the account before sharing its link

1. Review your profile. Check the name, photograph and description. Remove identifying details you do not intend to share with new contacts, such as an employer or a full name.
2. Create the username. Open your own profile in Signal settings, choose the username option and save it. Copy the complete result, including the final digits.
3. Choose the number controls. Visit Privacy → Phone Number and decide visibility and discovery individually. A saved username is only one part of the setup.
4. Choose a sharing format. Use the username QR code in person or copy its link online. If entering a username manually, paste the full value to avoid missing characters. [1]
5. Try a small test. Have a trusted person send a harmless request and confirm the destination before publishing the link more widely.

For installation, start with our Android or iOS guide. Configure privacy in the app. No website needs your verification code, PIN or recovery key to help you check these settings.

Check the result in three ways

For the first test, choose a trusted person who has neither saved your number nor previously chatted with you. An established contact may retain information that makes them a poor example of a stranger’s first view.

• Contact route: does the newly copied link create a request for the intended account? If it fails, recopy the current link and check for a stale version or a missing character.
• Profile disclosure: what does each person see before and after acceptance? A verbal description is enough; do not send additional personal details just to test privacy.
• Number discovery: if disabled, check it with another trusted person who has no existing connection. If the result surprises you, review the two controls before sharing the link further.

This is our suggested checking method, not an official certification procedure. Its purpose is to reveal a mismatch between your expectations and configuration. One successful test does not establish that every existing contact, group or external service cannot identify you.

Confirm who is contacting you before sharing sensitive details

A message request can be accepted, deleted or blocked. A familiar photograph and name are clues, not proof. If a sender claims to be an event participant, verify that context; if an old friend claims to have changed accounts, contact them through an established route. Acceptance shares your Signal profile, so there is no need to rush. [4]

For an important conversation, compare safety numbers after the request is accepted. Open the contact’s safety number page, then scan in person or compare over another trusted channel. This checks the encryption connection; associating that connection with a real person still depends on your identity check. Our key verification and safety number guide explains the process. [5]

Set a clear stopping point: a greeting suddenly turns into a request for a code, PIN, recovery key or an unfamiliar device-linking scan. Pause and independently verify the request. Signal’s anti-impersonation guidance says not to hand these credentials to someone claiming to provide support in a conversation. [6]

Changing an entry point does not end an existing relationship

You can change the username or its QR code and link. Existing conversations do not disappear when you change that entry point. Updating an old poster’s contact link and dealing with an unwanted established contact are therefore separate tasks; blocking may be appropriate for the latter. [3]

After an event, try this sequence: update the contact route, replace the public listing, test the new link, then check the old one. Avoid publishing a notice that ties your old and new usernames to your number if your purpose is to reduce those public connections.

Questions to resolve before going public

Does knowing my username automatically reveal my number?

No. Number settings and your existing relationship matter. A username conversation can merge with an earlier phone-number conversation. Multiple contact routes for one account should not be treated as separate identities. [1]

I changed my profile name. Why can friends still find me by number?

The profile name and discovery control are separate. Review the latter, then make sure friends have the contact route you actually intend them to use.

Does a public username make me anonymous?

No. A reused photo, a distinctive description and the conversation itself can provide clues. Decide who needs to reach you and what they should learn before choosing where to share a link.

• My profile contains only information intended for new contacts.
• I checked both number controls.
• I tested the exact link used in public listings.
• I know how to handle requests and have an independent way to verify important contacts.