Security Master - Antivirus, VPN, AppLock, Booster

Category Tools
Active Installs 1,000,000+
Size 21.7 MB
Version 4.9.9


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.

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

Key Features:
Intelligent Diagnosis
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.

SafeConnect VPN
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.

Wi-Fi security
Security Master detects and identify phishing Wi-Fi network, test network speed and protect phone's online safety.

Anti-Theft Alarm
Anti-Theft Alarm protect your phone from theft by sounding an alarm when someone moves your phone.

Message Security
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, 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:
Privacy Policy:
Security Master has used ACCESSIBILITY SERVICE.


We are always working to improve Security Master performance and user experience.
Because of you, we are getting better.
- More powerful scanning and antivirus engine
- Optimize product speed and performance
- Fix some known bugs
You can:
🛡️ Get the most advanced antivirus service here!
🎮 Use Game Booster to speed up your games and get better ranking!


  • com.mobilesrepublic.appy.permission.keeplive
  • com.zte.mifavor.launcher.permission.WRITE_SETTINGS
  • com.zte.mifavor.launcher.permission.READ_SETTINGS
  • com.tct.launcher.permission.WRITE_SETTINGS
  • com.tct.launcher.permission.READ_SETTINGS
  • com.oppo.launcher.permission.WRITE_SETTINGS
  • com.oppo.launcher.permission.READ_SETTINGS
  • com.motorola.launcher3.permission.WRITE_SETTINGS
  • com.motorola.launcher3.permission.READ_SETTINGS
  • com.lge.launcher3.permission.WRITE_SETTINGS
  • com.lge.launcher3.permission.READ_SETTINGS
  • modify global system settings
  • read setting
  • modify global system settings
  • com.gionee.amisystem.permission.WRITE_SETTINGS
  • com.gionee.amisystem.permission.READ_SETTINGS
  • com.bbk.launcher2.permission.WRITE_SETTINGS
  • com.bbk.launcher2.permission.READ_SETTINGS
  • com.asus.launcher3.permission.WRITE_SETTINGS
  • com.asus.launcher3.permission.READ_SETTINGS
  • com.asus.launcher.permission.WRITE_SETTINGS
  • com.asus.launcher.permission.READ_SETTINGS
  • modify global system settings
  • read setting
  • record audio
  • set wallpaper
  • Market billing service
  • update component usage statistics
  • com.anddoes.launcher.permission.UPDATE_COUNT
  • com.sonyericsson.home.permission.BROADCAST_BADGE
  • read setting
  • disable your screen lock
  • control flashlight
  • expand/collapse status bar
  • download without notification
  • read your contacts
  • access Google web-based services
  • kill background processes
  • close other apps
  • delete all app cache data
  • measure app storage space
  • retrieve running apps
  • prevent device from sleeping
  • access Bluetooth settings
  • pair with Bluetooth devices
  • precise location (GPS and network-based)
  • approximate location (network-based)
  • add or remove accounts
  • use accounts on the device
  • find accounts on the device
  • write Browser's history and bookmarks
  • modify your contacts
  • read battery statistics
  • modify system settings
  • control vibration
  • change your audio settings
  • Camera
  • read Browser's history and bookmarks
  • connect and disconnect from Wi-Fi
  • change network connectivity
  • view Wi-Fi connections
  • view network connections
  • read phone status and identity
  • run at startup
  • modify/delete SD card contents
  • full Internet access
  • write internal storage
  • modify global system settings
  • read setting
  • unistall shortcut
  • install shortcut
  • draw over other apps

In Media

آنتی ویروسی قدرتمند همراه شما - CM Security زیر ذره بین

Clean master از قدرتمند ترین آنتی ویروس هایی است که اکثر کاربران با آن آشنایی دارند و توسط تیم cheetah mobile ساخته شده است . یکی دیگر آنتی ویروس های ساخته شده توسط این تیم CM Security نام دارد. این برنامه ی امنیتی کاملا سبک و سریع است و توانسته با رعایت تمامی استانداردها اعتماد 1000000 کاربر اندرویدی را جلب نماید. در ادامه برای نقد و بررسی کامل CM Scurity با ذره بین همراه شوید.

معرفی CM Security : سپر محکم دستگاه اندرویدی در برابر حملات

حفاظت از اطلاعات شخصی موجود در دستگاه هایی همچون تبلت یا تلفن همراه، به اندازه ای اهمیت دارد که تا کنون اپلیکیشن های متنوعی برای این کار تولید شده است. تیم “Cheetah Mobile” از پیشتازان این عرصه به شمار میرود که حتما با اپلیکیشن معروف آنها به نام “Clean Master” آشنا هستید و آن را مورد استفاده قرار داده اید. تیم مذکور اپلیکیشن جدیدی به نام “CM Security” را تولید نموده که در ادامه آن را معرفی کرده ایم. برای آشنایی بیشتر با این برنامه اندرویدی و ایجاد سپری محکم دربرابر نفوذ افراد سودجو به تلفن همراه یا تبلت خود، با ما همراه باشید.

CM Security

CM Security ranked #1 by the AV-TEST again! AV-TEST, a leading independent organization in Germany, conduct regular appraisals of all antivirus products on the market and hand it awards for excellence. Their award is regarded as like an Oscar in the field of IT security and antivirus research. AV-TEST evaluates antivirus software based on how well they can detect viruses, how user-friendly they are, and awards high-quality products their commendations.