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Start by checking your Apple Account, connected devices, and sharing permissions—not by treating battery drain or glitches as proof of spyware. Unrecognized sign-ins, two-factor codes you did not request, unknown trusted devices, or account changes you did not make can signal unauthorized account access. Use Safety Check to review who and what can access information from your iPhone. These warning signs justify action, but do not by themselves prove that spyware is installed on the phone.
1. Check for signs of unauthorized Apple Account access
Apple lists several warning signs that someone may have gained access to your Apple Account:
- You receive an Apple notification or email about a sign-in or password change you did not initiate.
- You receive a two-factor authentication code you did not request.
- Your account shows a trusted device you do not recognize.
- Account details changed, or messages, files, or other items disappeared, without your action.
- You see purchases you do not recognize, or your Apple Account password no longer works.
- Your device was put into Lost Mode by someone else.
Apple says that if someone you do not know or trust can sign in to your Apple Account, the account is not secure. These indicators concern account access; they do not establish that someone installed spyware inside iOS. See Apple’s guidance on what to do if you think your Apple Account has been compromised.
2. Review sharing, connected devices, and app access with Safety Check
On an iPhone running iOS 16 or later, open Settings > Privacy & Security > Safety Check. You need to be signed in to your Apple Account with two-factor authentication enabled.
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- [2 Pack] This product includes 2 pack privacy screen protectors.WORKS FOR iPhone 17e/16e/14/iPhone 13/13 Pro 6.1 Inch tempered glass screen protector.Featuring maximum protection from scratches, scrapes, and bumps.[Not for iPhone 16 6.1 inch, iPhone 13 mini 5.4 inch, iPhone 13 Pro Max/iPhone 14 Pro Max/iPhone 14 Plus 6.7 inch, iPhone 14 Pro 6.1 inch]
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Use Manage Sharing & Access for a deliberate review
Choose Manage Sharing & Access to inspect which people and apps can access information. Review the devices connected to your Apple Account as part of the check, and remove access or devices you do not recognize or no longer want connected.
Use Emergency Reset to stop sharing broadly
If you need to stop sharing quickly, choose Emergency Reset. It stops sharing with people and apps broadly and also provides options to review emergency contacts and identity-verification phone numbers, and to change your Apple Account password.
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- [3 Pack] This product includes 3 pack privacy screen protectors.WORKS FOR iPhone 16/iPhone 15/iPhone 15 Pro 6.1 Inch tempered glass screen protector. Due to the rounded edge design of the iPhone 16/iPhone 15/iPhone 15 Pro and to enhance compatibility with most cases,the tempered glass screen protectors will be slightly smaller than the phone screen.[Not for iPhone 16e 6.1 inch, iPhone 15 Plus/iPhone 15 Pro Max/iPhone 16 Plus 6.7 inch,iPhone 16 Pro 6.3 inch,iPhone 16 Pro Max 6.9 inch]
- Specialty: HD rounded glass for iPhone 16/iPhone 15/iPhone 15 Pro 6.1 Inch is 99.99% touch-screen accurate.
- 99.99% High-definition hydrophobic and oleophobic screen coating protects against sweat and oil residue from fingerprints. Featuring maximum protection from scratches, scrapes, and bumps.
- High Privacy: Keeps your personal, private, and sensitive information hidden from strangers,screen is only visible to persons directly in front of screen.Good choose when you are in the bus,elevator,metro or other public occasions.(Note: Due to this privacy cover will darken the image to prevent the peeking eyes near you, you might need to turn your device display brightness up a bit when use it.)
- Online video installation instruction: Easiest Installation - removing dust and aligning it properly before actual installation,enjoy your screen as if it wasn't there.
Some Safety Check options may be unavailable if Screen Time restrictions are enabled or the iPhone has a mobile device management profile installed. Apple explains the feature and its requirements in its Safety Check guide.
3. Secure the Apple Account and regain control
If you find an unfamiliar device, sign-in, or account change, work to regain control of the account and secure it. Review the Apple Account on each device you use, along with other services signed in to it, such as Messages, FaceTime, Media & Purchases, Mail, and Calendar. Apple’s instructions for securing a compromised Apple Account cover the account checks and next steps.
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If you cannot reset your password or sign in, follow Apple’s account recovery process. Recovery timing can vary, so do not assume access will be restored immediately.
4. If someone may know your iPhone passcode
Unauthorized access can mean someone used the phone itself, rather than compromised the Apple Account or installed spyware. If someone has stolen your iPhone and knows its passcode, Stolen Device Protection is designed to add safeguards: certain sensitive actions require Face ID or Touch ID with no passcode fallback, and some critical account changes may trigger a security delay.
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Stolen Device Protection is available with iOS 17.3 or later and must be enabled before the iPhone is lost or stolen. It is a prospective theft safeguard, not a diagnostic that reports whether someone has already accessed your phone.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.5. If your iPhone is missing, mark it as lost
If the device is stolen or missing, use iCloud.com/find to mark it as lost promptly. Apple says you do not need a verification code to sign in there and mark the device lost.
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6. Consider Lockdown Mode only for a credible high-risk threat
Apple describes Lockdown Mode as an extreme protection feature for people who believe they may be targeted by a highly sophisticated cyberattack, such as attacks involving state-sponsored mercenary spyware. It restricts some apps, websites, and features. It is not a routine scan or general fix for unexplained phone behavior.
What symptoms can—and cannot—tell you
Battery drain, overheating, crashes, and unfamiliar behavior are not conclusive evidence of hacking. Apple notes that unauthorized iOS modification, also called jailbreaking, can cause security vulnerabilities, instability, and shortened battery life; that does not mean those symptoms prove a phone was jailbroken or compromised. Apple’s guidance supports account and access checks, but does not provide a consumer diagnostic that can conclusively prove or rule out spyware on a particular iPhone. Avoid treating a symptom alone as a forensic verdict.
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