Security Master, formerly known as CM Security is a freemium Android tool that serves as antivirus app, applock, memory booster and junk file cleaner.

Quick App Overview

  • Deep system scanning
  • Automatic call blocking
  • Real-time virus protection
  • Browser ads blocking and anti-phishing protection
  • Junk file cleaning
  • Professional cleaning tool
  • App lock
  • Anti-theft alarm
  • System optimization
  • Notification cleaner
  • Memory booster

CM Security Master Antivirus is powered by local and cloud engines to protect the device against several threats. It can be used to scan the entire Android device, including SD cards as well as new applications and their updates. The tool occasionally reminds you of the need to scan your system and remove all threats.

Security Master app can be used to track down a thief that stole your Android phone. This is because it can take repeated selfies of intruders trying to unlock your device and share their location online. So with google map, you can easily track the thief down. It can also be remotely controlled to set off an alarm when the need arises.

CM Security also acts as privacy protection tool against potential attacks and data bridges especially now that many apps with serious privacy issues are developed.

In fact, Security Master apk is an all-in-one security app that provides real-time protection against malwares, allows for proper maintenance and device optimization. It comes with visual pleasant user interface and easy to use tabs (tools).

So if you are looking for the best security or antivirus app with inbuilt intelligent diagnostic tools to protect your phone from every form of harmful apps, and scam calls, then Security Master (a.k.a CM Security) is the answer.

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How CM Security Master Work

Immediately you install the app in your phone, it will quickly detect your device status in real-time and provide perfect fix to optimize your phone. After scanning your device, it will show all risks and ask you to clean errors, residual and junk files.

Security Master App

Features of Security Master App for Android

Below are some of the outstanding features of this all-in-one phone security app.

Locate Your Missing Phone

Security Master has special anti-theft tools that helps you to locate your missing phone, wipe, or lock the Android device remotely. However, to use the alarm feature, you have to register on their website and use it to turn the alarm on your device. You can register with your Gmail or Facebook account and go to “find phone” to get started.

Protection Against Malware & Viruses

According to the test carried out by the independent German testing lab AV-TEST, Security Master App for Android was confirmed as a suitable malware detection which provides 100% real time scores. You can perform a real-time scan for malwares and viruses on your device by simply tapping the “Scan” button on the main screen. Once scan is completed, the app will display all issues related to security, internet, optimization and privacy on the device under few seconds.

Additionally, you can schedule the scan frequency to either daily, weekly or monthly. Other available features under this section includes condition-based scans as well as a private browser “Safe Browser”, which provide real-time web protection for when browsing on the internet.

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Safe Connect Free VPN

CM Security comes with a free VPN that allow you bypass regional restrictions. It gives 200MB of data usage per day just like Spark VPN. It can switch between server locations quickly and also keep track of your data usage.

But to enjoy the full package features of CM Security VPN, you must switch to the Security Master VIP plan. On this plan, you will get unlimited data usage and wide range of server locations to choose from without limits.

AppLock — Vault

Another popular feature of Security Master is “applock”. It allow you lock any app on your Android device with a personalized PIN, fingerprint or pattern lock.

On default, it suggests apps that needs to be locked including sensitive apps like Messenger, WhatsApp, Facebook, Gmail, SMS, Call Logs, Contacts, Images, Instagram, Twitter etc.

Any app that is locked will require unlocking in order to open them. In fact, if anyone tries to open such apps and failed because of wrong password, PIN, pattern of fingerprint, an “intruder selfie” will be captured. With this you will be able to know who wanted to have access to your secret files without your consent.

There is now a dedicated standalone app called “CM AppLock” that offers this app locking feature exclusively.

Caller ID and Blocking

Just like Truecaller app, Security Master app can reveal the identity of person that calls you. You can also block spammy or unwanted calls. Add some contacts to black lists and so on.

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Secures Wi-Fi Connectivity

CM Security Master app can detect malicious activities on Wi-Fi network which you are connected to and run speed test to know the signal strength of all the networks available to your device one by one.

Message Security

Locking your messaging app alone won’t completely protect you against the visibility of notification of incoming messages. But the messaging feature helps you group all the notification and secures them from unauthorized viewing.

Where Can I Download CM Security Master App for Android?

Download Security Master Antivirus App via Play store.

It will automatically install on your device. So what you will do after installation is to run your first scan and clean your device from virus, Malware and bugs.

Phone scanned

Scanning Android phone

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Final Verdicts

With over 500,000,000 downloads and 25,000,000 reviewers who rated it 4.7 on google app store, Security Master is sure one of the best security and optimization tools you need to install on your Android phone or tablets today.