iPhone Says A New Device Has iMessage Access: What To Do (2026)

If your iPhone says a new device is using your Apple Account and phone number for iMessage and FaceTime, you probably have not been hacked.

The alert usually appears when one of your own Apple devices signs in, but it is worth a two-minute check to be sure.

This guide shows how to tell a harmless alert from a real problem and what to do in either case.

Is the new device alert safe to ignore?

What you did recently	Likely cause	What to do
Set up or restored an Apple device	Normal sign-in	Confirm it in your device list
Signed out of iMessage or FaceTime, then back in	Normal re-registration	Confirm it in your device list
Turned on an old iPad, Mac or iPhone that was offline	Device reconnected	Confirm it, then sign it out if unused
Nothing, and a device you do not know appears	Possible unauthorized sign-in	Remove it and change your password

What does the alert actually say?

MacRumors reports the wording as “Your Apple ID and phone number are now being used for iMessage/FaceTime on a new” device, followed by a line saying you can ignore it if you recently signed in.

That text comes from MacRumors, not from an Apple support page, and Apple now calls the account an Apple Account rather than an Apple ID.

The alert does not by itself prove anyone else has your account.

What usually triggers it?

MacRumors lists these everyday triggers:

Setting up a new Apple device.
Erasing and reinstalling the system on a device you own, then signing back in.
Signing out of iMessage or FaceTime on a device.
Turning on a device that was offline and signed in during that time.
A poor Wi-Fi connection on a device.

It also notes the alert can arrive late because Apple’s servers sometimes take a while to update your device list.

Step 1: Think about what you just turned on

Check whether you recently charged an old iPhone, woke an iPad or restored a Mac.

If one of those matches the timing, you have likely found the cause.

Step 2: Check your Apple Account device list

Open Settings and tap your name.
Scroll down to see the list of devices.
Tap a device name to view its information.

The list includes every device signed in with your Apple Account, including Android phones, Windows PCs and streaming devices.

If you do not recognize one, tap Remove from Account in its information and confirm.

Step 3: Check Send & Receive in Messages and FaceTime

On current iOS the Messages and FaceTime settings sit under Apps.

Open Settings > Apps > Messages > Send & Receive and confirm every number and email address is yours.
Open Settings > Apps > FaceTime and check the addresses under You Can Be Reached By FaceTime At.

If an email address is wrong or unverified, fix it in your Apple Account at account.apple.com.

Step 4: Check two-factor authentication and trusted numbers

Trusted numbers receive your verification codes, so a number you do not control is a red flag.

To add one on iPhone, open Settings > your name > Sign-In & Security > Two-Factor Authentication and tap Add Trusted Phone Number.

To view or remove numbers, sign in at account.apple.com, choose Sign-In and Security, then Account Security, and use the Trusted Phone Number section.

Where do you check each setting?

What to check	Where to find it	Fix if wrong
Signed-in devices	Settings > your name, scroll down	Remove from Account
iMessage addresses	Settings > Apps > Messages > Send & Receive	Edit at account.apple.com
FaceTime addresses	Settings > Apps > FaceTime	Edit at account.apple.com
Trusted phone numbers	account.apple.com > Sign-In and Security > Account Security	Remove or add a number
Password	Settings > your name > Sign-In & Security > Change Password	Set a new password

When should you worry about the alert?

Treat it as suspicious if a device or address in those lists is not yours, or if the alert arrives with no activity on your side.

Apple’s scam guidance says it never asks you to tap Accept in a two-factor dialog, share a code or turn off a security feature.

Anyone asking for that is trying to get into your account.

What should you do if the device is not yours?

Remove the unknown device with Remove from Account.
Open Settings > your name > Sign-In & Security > Change Password and set a new password.
Choose Remove Other Devices if asked, which forces other devices to sign in again.
Make sure two-factor authentication is on.

Action	What it does
Remove from Account	The device loses access to iCloud and Find My and stops showing verification codes
Change Apple Account password	Remove Other Devices forces every other device to sign in again
Keep All Devices Signed In	Leaves other devices signed in, so use it only if they are all yours

With Stolen Device Protection on, a password change can trigger a one-hour wait.

Forward phishing emails to [email protected], or screenshot a suspicious text and email that address.

How do you reset iMessage on your own iPhone?

Resetting registration on your main phone can clear up confusion after a restore or a number change.

Open Settings > Apps > Messages and turn off iMessage.
Go back, open Settings > Apps > FaceTime and turn it off.
Restart your iPhone.
Turn iMessage and FaceTime back on.

If a spinning gear sits next to your number, Apple says it is still verifying, so do not keep toggling the switch.

If iMessage will not activate, read our guide to iMessage waiting for activation.

How do you stop the alert from coming back?

Sign out of devices you retire, because a removed device can reappear the next time it connects if it is still signed in.

On an iPhone or iPad running iOS 26 or later, open Settings > your name, scroll down and tap Sign Out.

Before selling or giving a device away, also erase it with Settings > General > Transfer or Reset > Erase All Content and Settings.

If you are moving to a non-Apple phone, deregister iMessage first.

For more on how the account works, see why an iPhone needs an Apple ID.