Security Master - Antivirus, VPN, AppLock, Booster is one of the popular Android app in  category published by  Cheetah Mobile (AppLock & AntiVirus)  in Google Play Store. Security Master app has gained over + from Android users with a aggregated rating of 4.65 from 25,320,062+ users in Google Play Store and content rating of  Everyone.
There are a lot of Tools Android apps which offer similar features like Security Master , you may notice some of them are also developed by Cheetah Mobile (AppLock & AntiVirus).
The original CM Security upgraded to the Security Master and redefined the scope of Phone Security: protects not only your android phone but also your privacy. Read More
More than a simple antivirus for android, Security Master is built with more powerful feature, including:
★Intelligent Diagnosis - Antivirus, Junk Clean, Phone Booster, Battery Saver, CPU Cooler
★SafeConnect VPN – fast secure VPN proxy
★Wi-Fi security - scan Wi-Fi networks for threats
★Anti-Theft Alarm – protect your phone from theft by sounding an alarm
★Message Security – hide notifications preview
★Applock – lock and protect apps with a password
★Intruder Selfie - capture intruder using your phone
Antivirus - Security Master, a free antivirus for android, keep your phone and privacy safe from virus & malware with #1 antivirus engine.
Junk Clean - Intelligently scan and remove junk files including system and app caches with just one tap.
Phone Boost, Battery Saver, and CPU Cooler - Remove background apps that take high memory usage, overheat and drain battery.
Bypass firewalls and freely access sensitive websites, watch videos not available in your country anonymously without being tracked.
Hide IP address and apply virtual location, protect your online activities to prevent leak of online banking information, private messages, and browsing history.
Security Master detects and identify phishing Wi-Fi network, test network speed and protect phone's online safety.
Anti-Theft Alarm protect your phone from theft by sounding an alarm when someone moves your phone.
Message Security hides notifications preview timely to protect your privacy. It gathers all chat notifications into one and makes them easier to read & manage.
Lock Bluetooth & Wi-Fi switches, incoming calls, apps, photos, or any private data with a pattern, PIN code, or fingerprint.
With Security Master, a free antivirus for android, protect your phone from viruses and malware. Keep your privacy safe with Applock, SafeConnect VPN, Wi-Fi Security and more features.
Terms of service: https://goo.gl/AidoF8
Security Master has used ACCESSIBILITY SERVICE.
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