The most useful warning signs are unexpected changes to your Apple Account: a sign-in or password-change alert you didn’t trigger, a verification code you didn’t request, an unfamiliar trusted device, or messages and purchases you didn’t make. Treat these as reasons to check account access—not as proof that spyware is installed on your iPhone. A genuine Apple threat notification is a separate, higher-confidence alert about possible individual targeting.
Which signs should you take seriously?
Apple lists several signs that someone else may have access to your Apple Account. Each warrants a security check, though none by itself establishes that malicious software is running on your iPhone. See Apple’s guidance on a potentially compromised Apple Account.
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- You receive an Apple notification or email about a sign-in or password change you don’t recognize.
- You receive a two-factor authentication code you didn’t request.
- Your account shows a device, trusted phone number, or other detail you don’t recognize.
- Messages were sent, items deleted, or purchases made without your action.
- Your password suddenly stops working, or your iPhone is unexpectedly locked or put in Lost Mode.
A sign-in alert may show a map, but Apple says the location is approximate and based on the IP address or network being used—not the device’s exact location. Don’t decide based on the map alone. If you didn’t initiate the sign-in, choose Don’t Allow and review your account. Apple’s guidance on rejecting unknown sign-in attempts explains this prompt.
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Use Safety Check
On an iPhone running iOS 16 or later, go to Settings > Privacy & Security > Safety Check. You must be signed in to an Apple Account with two-factor authentication.
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Safety Check does not cover every kind of access. It can’t review or change some sharing on non-Apple accounts and social media, devices signed in to a different Apple Account, or certain sharing settings on iPad and Mac. Screen Time restrictions or a mobile-device-management profile can also make some options unavailable. Apple advises considering personal safety before changing settings; Safety Check includes Quick Exit. See Apple’s Safety Check guide.
What to do if you find unfamiliar account activity
- Change your Apple Account password. Choose a strong, unique password.
- Correct account information. Update any personal or security details you don’t recognize.
- Remove unknown devices. Review the devices associated with your account and remove ones you don’t recognize.
- Secure recovery routes. Confirm that you control every email address and phone number associated with the account. Ask your mobile carrier to check that SMS forwarding hasn’t been set up without your knowledge.
These are Apple’s recommended steps for securing an account that may have been compromised. Read Apple’s complete account-recovery guidance.
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How an Apple threat notification is different
Apple describes its threat notifications as high-confidence alerts that a user has been individually targeted by mercenary spyware. The notification appears on the iPhone’s Lock Screen and in Settings, is emailed to addresses associated with the Apple Account, and appears at the top of the account page after you sign in. Apple says it cannot provide details about the criteria used to detect these attacks.
To verify a notice, type account.apple.com into your browser and sign in directly. Apple says a genuine threat notification will never ask you to click a link, open a file, install an app or profile, or share your password or verification code by email or phone. Take a confirmed alert seriously and seek expert assistance; Apple recommends Access Now’s Digital Security Helpline. Apple reported on August 13, 2026, that it had sent notifications since 2021 to users in more than 150 countries. That is a cumulative reach figure reported by Apple, not a measure of how common spyware is among iPhone owners. See Apple’s threat-notification guidance.
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When Lockdown Mode may make sense
Lockdown Mode is optional, extreme protection intended for the small number of people who may be personally targeted by sophisticated digital threats. It has been available starting with iOS 16, and it limits some apps, websites, and features. Apple recommends updating devices before enabling it and turning it on across supported devices for complete protection. It is not presented as a routine requirement for every iPhone owner. Details are in Apple’s Lockdown Mode guide.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Everyday steps that strengthen security
Apple recommends keeping device software current, using a passcode or biometric protection, enabling two-factor authentication, and using a strong Apple Account password. It also recommends Stolen Device Protection, getting apps from the App Store, and choosing unique passwords or passkeys for online accounts. Apple identifies security keys as an optional extra layer of protection against targeted phishing; check Apple’s current requirements and setup guidance before choosing or configuring one. These measures are detailed in Apple’s guidance on protecting against mercenary spyware.
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