Norton is one of the best-known names in cyber security, and Norton Security and Antivirus for Android is Norton Mobile Security's free app for Android devices. It syncs with your existing Norton account, or you can create a new account for free (paid upgrades enable additional features). Like many Android apps from antivirus providers, Norton Security and Antivirus emphasizes additional security features like backup and anti-theft as much as virus and malware protection.
No sign-in: Try Norton Mobile Security without registering the app. However, features like Anti-Theft require sign-in.
Proactive protection: Android and Windows differ in vulnerability, so Norton's app takes a proactive approach by targeting potential threats like suspicious apps and guarding against online intrusion and device theft.
Ongoing notifications: Enabling the Ongoing notifications option displays your device's security status in your device's notifications.
Premium-only features: The App Advisor for Google Play, Backup, Web protection, and Call and SMS Blocking are only available with a Premium account, though security apps from equally reputable sources offer similar features for free.
There's no doubt that mobile security threats exist and will most likely grow in frequency and security, so reliable protection is a must. Norton Security and Antivirus for Android is a good choice if you have an existing Norton account, but similar apps offer more features for free.
We are continuing to add new features and make improvements to bring you great Norton Android protection and value!
- Wi-Fi Security protection enhancements - Now detects Content Manipulation attacks
- Support for Android O
- We heard you! We re-enabled the ability to scan your license key via our optical character reader (OCR)
- UI/UX improvements
- Bug fixes
Norton Security & Antivirus is an award winning mobile security and virus protection app. It helps protect your Android devices against threats such as malicious apps, theft, and websites designed to steal your information and money.
FREE Android Security Features
Android Antivirus: Scan and help remove apps that have malware, spyware, or an Android virus that can harm or slow your device.
Wi-Fi Scanning: Helps your device stay safe when connecting to public Wi-Fi by notifying you if a connection is unsecure
Safe Search: In-app search engine connects to Symantec's global threat database to flag unsafe sites right in your search results
Call Blocking allows you to block unwanted, SPAM and junk calls on your phone
Lost and stolen phone protection tracks your device's location and saves the last known location when the battery level is critical, sounding an alarm, or taking a Sneak Peek photo of anyone using your device without them knowing,
PREMIUM FEATURES (Free 30-Day Trial1)
WiFi Security helps your device stay safe when connecting to public Wi-Fi. Wi-Fi Security alerts if an unknown party on the same Wi-Fi network is spying on your online activity, known as a man-in-the-middle (MITM) attack
Get real-time alerts when an incoming call is from a known Spam or Fraud number based on FCC and FTC blacklist and automatically block the call (US only)
Web Protection offers comprehensive security while surfing online to help protect you against visiting malicious and phishing sites
Ransomware protection helps detect and helps stop active ransomware attacks on your Android device
Android System Advisor: Helps scan your device and Android OS to identify points of attack that can leave you exposed to cyber threats
SMS to remotely lock your lost or stolen phone to prevent data theft, automatically lock after 10 failed unlock attempts if the SIM card is removed. 
Wipe a lost or stolen device's information remotely to help protect your private information
Sneak Peek uses the built-in webcam to take a photo of anyone using your device once you list it lost or stolen (webcam-enabled devices only) 
App Advisor powered by Norton Mobile Insight, automatically checks apps for potential
privacy risks, high battery and data usage or intrusive behavior before download
Privacy Report Interactive Map shows where in the world apps send personal information and photos
Norton Security & Antivirus provides proactive anti malware, spyware and virus protection.
 For new users without a current Premium Norton Mobile Security subscription. The Premium Norton Mobile Security trial period will last for 30 days so long as the current version remains available on the app store. No credit card information required. When the trial ends, you can continue to enjoy the FREE features to keep your device safe and secure!
 SMS Lock, SMS Wipe, SMS Locate, SMS Scream and Text Blocking not supported on Android 4.4 or later.
 Sneak Peek feature not available in Germany.
 Android multi-user mode not supported.
 Auto scan of apps on Google Play supported on Android 4.1 or later except for Samsung devices. Samsung devices running Android 4.2 or later are supported.
 AV-test, "Best Android Security 2017, March 2018": https://www.av-test.org/en/news/av-test-awards-2017-go-to-symantec/
For feedback and suggestions, visit the support forum: http://norton.com/nms_support
For a detailed list of features, visit: https://MobileSecurity.Norton.com/