Select Page
What's NewDescription
  • AppLock- A new use for fingerprint locks
  • Added sharing of your favorite AppLock themes to your friends
  • Added screen protection button to Private Browsing, to prevent accidental taps when watching videos

The new version of CM Security Master is a smartphone application that closely satisfies the security needs of our users. By intelligently detecting their demands, Security Master actively recommends the most suitable functions such as Scan Antivirus, Clean Junk, detect trojans and virus, hotspot, Phone and Boost. Whole new SafeConnect VPN helps you to safely connect to the world!

Free Antivirus, Virus Removal, Security Protector, Speed Booster, Scan Virus, Malware Remover, ramsonware virus protection, Junk Cleaner, AppLock and SafeConnect VPN for Android Phones. CM Security Master is the #1 Privacy Protection & Anti-virus App. It takes only 10 seconds to detect virus, Trojans, malware, and privacy leak. It further protects your phone privacy by hiding your messages and lock your apps immediately, the AppLock. Moreover, it automatically takes pictures of whoever is trying to unlock your phone. In addition, it contains all needed features to optimize your phone, including boost, booster, clean, battery saver, safe Wi-Fi Connection, Notification cleaner, and callblock.

Security Master Key Functions:

  • Intelligently Detecting, Antivirus Master – Stay Secured. #1 antivirus engine. CM Security Master was voted #1 antivirus engine 9 consecutive times by AV-TEST. With virus detection rate as high as 100%. As a virus scanner and cleaner, Security Master Antivirus Keeps your phone and data safe and protected from Malware, Spyware, Hackers, Trojans, and Virus, keeping your phone safely guarded and protected with the #1 antivirus engine. in addition, it includes multiple features that help users quickly enhancing the status of their phones, such as antivirus, remove virus, malware virus, scan virus threats, and protect phone privacy from virus and hackers, especially when you’re on hotspot.

Junk Clean Master – Keep it Clean

  • Clean your junk and free up storage with just one tap. CM Security Master can clear your cache while scanning threats and junk files, keeping it guarded and protected.

Performance Boost, Battery Saver, and the Speed CPU Cooler

  • One Click Booster to optimize and to boost your phone to keep the battery cool, keep the system running fast while increasing battery life.

AppLock -Protect your privacy anytime, anywhere

  • App Lock protects your mobile data, incoming calls, apps, settings, photos, or any apps you choose with App Lock and hide Notification detail. AppLock protects and safes battery.
  • Lock your apps with pattern, PIN code, or fingerprint. You can also customize the re-lock time. The preview of notifications guards your system with its lock feature.

Antitheft Intruder Selfie

  • Intruder photo will automatically be taken and send to you by e-mail. Use the Antitheft Intruder Selfie system to better guard your device. Use Antitheft Intruder Selfie system to better guard your device.

Disguise cover

  • Disguise your lock screen so that no one is aware that you are using App Lock. You can protect your privacy without your parents, partner, or children knowing.


  • Choose your own style of lock screen from hundreds of AppLock themes, or customize it using your own photos.

SafeConnect VPN Online Protection – VPN made easy, proxy & unblock

  • SafeConnect VPN establishes a secured cyber environment for the users. With SafeConnect VPN, you can apply virtual location to enhance security while accessing your favorite contents. With SafeConnect VPN, Security Master now protects not only your device but your online data

Notification Cleaner

  • Rid annoying notifications, by automatically sweeping junk notifications. It prevents trash notifications from jamming and slowing down your phone’s performance, guards your phone free from disturbing and annoying notifications, which ultimately boosts your phone’s performance and battery life.
  • Security Master Antivirus & Cleaner is the best free security protector, antivirus, App Lock, VPN, virus remover, trojan detector, hotspot, and junk cleaner app for Android phones.

CM Security Master Antivirus Apk Information

  • Updated: 26 December 2017
  • Version: 4.3.4
  • Requires Android: Varies with device
  • Google Play Rating: 4.7/5
  • In-app Products: No
  • DeveloperCheetah Mobile
CM Security Master Antivirus Apk


This release may come in several versions. Click the link below to download the latest version.

Previous Versions of CM Security Master Antivirus Apk

CM Security Master Antivirus 4.3.2 APK (Update: 2017-12-12)
CM Security Master Antivirus 4.3.1 APK (Update: 2017-12-06)
CM Security Master Antivirus 4.3.0 APK (Update: 2017-11-29)
CM Security Master Antivirus 4.2.9 APK (Update: 2017-11-20)
CM Security Master Antivirus 4.2.8 APK (Update: 2017-11-13)
CM Security Master Antivirus 4.2.7 APK (Update: 2017-11-06)
CM Security Master Antivirus 4.2.5 APK (Update: 2017-10-06)
CM Security Master Antivirus 4.2.4 APK (Update: 2017-10-02)
CM Security Master Antivirus 4.2.3 APK (Update: 2017-09-21)
CM Security Master Antivirus 4.2.2 APK (Update: 2017-09-12)
CM Security Master Antivirus 4.2.1 APK (Update: 2017-09-08)
CM Security Master Antivirus 4.1.9 APK (Update: 2017-08-28)
CM Security Master Antivirus 4.1.8 APK (Update: 2017-08-21)
CM Security Master Antivirus 4.1.6 APK (Update: 2017-08-12)
CM Security Master Antivirus 4.1.5 APK (Update: 2017-08-02)
CM Security Master Antivirus 4.1.4 APK (Update: 2017-07-19)
CM Security Master Antivirus 4.1.3 APK (Update: 2017-07-14)
CM Security Master Antivirus 4.1.2 APK (Update: 2017-07-07)
CM Security Master Antivirus 4.0.3 APK (Update: 2017-06-19)
CM Security Master Antivirus 4.0.1 APK (Update: 2017-06-02)
CM Security Master Antivirus 4.0.0 APK (Update: 2017-05-20)
CM Security Master Antivirus 3.3.4 APK (Update: 2017-05-04)
CM Security Master Antivirus 3.3.2 APK (Update: 2017-04-15)
CM Security Master Antivirus 3.3.1 APK (Update: 2017-04-14)
CM Security Master Antivirus 3.2.9 APK (Update: 2017-03-28)

Related Post