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Protect your smartphone against threats

Learn how the AT&T Mobile Security app helps defend your phone against security threats. Enjoy more security features with select AT&T unlimited plans.


Standard mobile security features

With AT&T Mobile Security, you can enjoy these features:1

App monitor (Android® only)
Scans your device proactively and warns you about potentially unsafe apps.

Breach reports 
Sends email and app alerts when Mobile Security detects a data breach that may affect you. You’ll also get helpful tips about what to do next.

Email threat detection
Checks for malware or spyware in email downloads and attachments. It doesn’t scan individual emails.

Malware scans (Android only) 
Looks for malware, like Trojans, worms, spyware, and ransomware, on smartphones and apps. Plus, it actively monitors your files if you select File Security.

Passcode check
Checks if your smartphone uses a passcode to protect your device and data from unauthorized access.

System update (iOS only) 
Lets you know if it’s time to update your phone’s operating system, or if something changes your smartphone’s operating system. If it finds an issue, you’ll get a notice and the Device Security section on the Mobile Security home screen will turn red. It stays red until you select Device Security to get more details about fixing the issue.

Threat alerts 
Turns the affected feature’s icon red when Mobile Security identifies a threat to your smartphone.
  • You’ll get a notification and the icon will stay red until you act.
  • Selecting the icon gives you info about the threat and options to resolve it.
  • The app doesn’t automatically delete the files or apps.
  • If you check your files, you may also get pop-up alerts telling you how to handle threats.
Heads up: If you have an AT&T 4GBSM or AT&T Unlimited StarterSM plan, see the Advanced or standard mobile security for select plans section.

Advanced mobile security features

With AT&T Mobile Security Plus, you enjoy the same features as the Basic version but with more data protection. Try AT&T Mobile Security & Call Protect Plus for just $3.99 a month. To get the Plus version, open the app and tap Unlock Plus. Learn more about the AT&T Mobile Security & AT&T Call Protect apps

Have AT&T PREPAIDSM? You’ll pay the monthly fee through your app storefront.

Or, already have AT&T Unlimited EliteSM or AT&T Unlimited ExtraSM? See the Advanced or standard security for select plans section to find out how you can get advanced mobile security at no cost.

AT&T Mobile Security Plus features
  • Public Wi-Fi Protection guards your data over open (unsecured) Wi-Fi® connections.
  • Safe Browsing block suspicious sites so you can surf the web safely.
  • Breach reports alert you to company data breaches, along with helpful tips.
  • Identity Monitoring alerts give you advice if your personal info is leaked.
  • Wi-Fi alerts warn you if you join a potentially dangerous network.
  • Theft alerts (Android only) email you about suspicious activity detected on your phone.

AT&T Call Protect Plus features
  • Caller ID identifies unknown caller details.
  • Reverse Number Lookup provides caller details when you enter a U.S. number.
  • Nuisance Call Controls (Custom Call Blocking) let you choose which call categories you want to allow, block, or send to voicemail. Categories include Telemarketer, Political, Fraud, and more.

Advanced or standard security for AT&T unlimited wireless plans

AT&T Unlimited Elite or AT&T Unlimited Extra
If you have Unlimited Elite or Extra, you'll enjoy advanced mobile security features at no extra charge. You'll also get AT&T ActiveArmorSM and its key network security add-ons. These add-ons include automatic fraud call blocking and suspected spam risk alerts.

Advanced mobile security includes access to Mobile Security Plus and Call Protect Basic features.1 But, it’s not the same as the AT&T Mobile Security and Call Protect Plus, which costs $3.99 per month2 and provides additional call protection features.
  • If you're on a select unlimited plan with AT&T Wireless, be on the lookout for a text explaining how to activate your advanced mobile security at no cost.
  • If you’re paying for this service through your AT&T bill, you can decide which features are important to you. Then you can choose to:
    • Change to the advanced mobile security for free, and discontinue your Call Protect Plus features (Caller ID, Reverse Number Lookup, and Nuisance Call Controls). To make the change, sign in to myAT&T and remove the Mobile Security & Call Protect app. Then choose Mobile Security Plus for Unlimited Plans.
    • Keep paying $3.99 per month for AT&T Mobile Security and Call Protect Plus and enjoy all the advanced features of both apps.
  • If you subscribed thru iTunes or the Google Play Store, pay $3.99 per month for the service, and want to change to free Mobile Security Plus features, you'll have to cancel your subscription in the app store. After your subscription bill period ends, you can select AT&T Mobile Security Plus for Unlimited plans within myAT&T.

AT&T 4GB or AT&T Unlimited Starter
Have the AT&T 4GB or Unlimited Starter plan? Enjoy our standard mobile security at no extra charge1 and get AT&T ActiveArmor network security.

See all important details

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