The original CM Security was updated to the Security Master and redefined the reach of Phone Security: it protects not only your Android phone but also your privacy.
+ Smart diagnosis
+ SafeConnect VPN: fast and secure VPN proxy
+ Wi-Fi Security: scan Wi-Fi networks for threats
+ protect your phone against theft by sounding an alarm
+ Message security: hide notification preview
+ Applock: lock and protect applications with a password
+ Selfie intruder – capture intruders using your phone
+ Smart diagnosis
+ SafeConnect VPN
+ Wi-Fi security
+ Burglar Alarm
+ Message security
+ AppLock

Supported Android
(4.1 and up)
Ice Cream Sandwich (4.0 – 4.0.4),Jelly Bean (4.1 – 4.3.1),KitKat (4.4 – 4.4.4),Lollipop (5.0 – 5.1.1),Marshmallow (6.0 – 6.0.1),Nougat (7.0 – 7.1.1),Oreo (8.0-8.1), Pie(9.0)

Download Security Master Antivirus, VPN, AppLock, Booster 5.1.7 Premium APK

Security_Master_Premium_5.1.7.apk