Security Master - Antivirus, VPN, AppLock, Booster

Security Master - Antivirus, VPN, AppLock, Booster Free App

Rated 4.65/5 (24,228,426) —  Free Android application by Cheetah Mobile (AppLock & AntiVirus)

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About Security Master - Antivirus, VPN, AppLock, Booster

The original CM Security upgraded to the ???? Security Master - Antivirus, VPN, AppLock, Booster (by CM, Cheetah Mobile) and redefined the scope of Phone Security: protects not only your phone but also your privacy. Security Master introduced Intelligent Diagnosis to detect your phone status, including Antivirus, Junk Clean, and Phone Booster (Battery Saver, and CPU Cooler) in time. All the necessary features to keep your phone safe & healthy.

Security Master Key features:

???? Intelligent Diagnosis - Antivirus, Junk Clean, and Phone Booster
Our famous big button design upgraded to intelligently diagnose your most needed solution.
Antivirus – 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, optimize phone performance and speed up phone.

???? SafeConnect VPN
Security Master (by CM) presents free VPN, proxy & unblock solution. With SafeConnect VPN, you can apply virtual location to enhance security, freely access favorite contents and protect online data transmission to prevent leak of online banking information, private messages, and browsing history.

✉️Message Security
Message Security (by CM) hides notifications timely to protect your privacy. It gathers all chat notifications into one and makes them easier to read & manage.

????AppLock
AppLock - Lock Bluetooth & Wi-Fi switches, incoming calls, apps, photos, or any private data with a pattern, PIN code, or fingerprint.
Intruder Selfie - Take photo of intruders who trying to break in your phone. AppLock feature protects apps privacy from snoopers. (Intruder Selfie for phone luck screen needs device administrator permission)
Disguise cover - Disguises lock screen so that no one is aware of you are using AppLock while keeping your secret & privacy safe.

Terms of service: https://goo.gl/AidoF8
Privacy Policy: https://goo.gl/ec3pN2
AdChoices: https://goo.gl/qrzoXV
Security Master has used ACCESSIBILITY SERVICE.

How to Download / Install

Download and install Security Master - Antivirus, VPN, AppLock, Booster version Varies with device on your Android device!
Downloaded 500,000,000+ times, content rating: Everyone
Android package: com.cleanmaster.security, download Security Master - Antivirus, VPN, AppLock, Booster.apk

All Application Badges

Oct 11
2014
10x
Users love it
Free
downl.
For everyone
Android app

App History & Updates

What's Changed
1. AppLock- A new use for fingerprint locks
2. Added sharing of your favorite AppLock themes to your friends
3. Added screen protection button to Private Browsing, to prevent accidental taps when watching videos
More downloads  Security Master - Antivirus, VPN, AppLock, Booster reached 500 000 000 - 1 000 000 000 downloads
Name changed  Name changed! CM Security AppLock AntiVirus now is known as Security Master - Antivirus, VPN, AppLock, Booster.
Name changed  Name changed! CM Security Antivirus AppLock now is known as CM Security AppLock AntiVirus.
Name changed  Name changed! CM Security AppLock &AntiVirus now is known as CM Security Antivirus AppLock.

What are users saying about Security Master - Antivirus, VPN, AppLock, Booster

Z70%
by Z####:

Helped me solve my phome protection issues reeeal quick. Excellent app! It also has an amazing app lock feature! It takes intruder selfies if they sense something going in. My fav app for sure

S70%
by S####:

I need WiFi security included pls. still a great app thx

S70%
by S####:

Heard good words

S70%
by S####:

Just started using it

A70%
by A####:

Nice work

P70%
by P####:

Good app privacy protection

S70%
by S####:

Great

D70%
by D####:

Amazing!

L70%
by L####:

great

S70%
by S####:

Great

W70%
by W####:

Amazing

L70%
by L####:

Well done folks

S70%
by S####:

Thank for security

S70%
by S####:

very goof

S70%
by S####:

good

Q70%
by Q####:

This app seems to be taking over my phone! ! Has anyone else having the same problem? I maybe uninatall it ???? no make that I am going to uninatall this app took me 6 times to Try put my pin code in!! Not happy ????

L70%
by L####:

Very good job. My phone was dragging until I installed this app. Thanks

S70%
by S####:

The only one that doesn't conflict with a lot of apps on my phone

S70%
by S####:

Sometimes fingerprint for app lock not working properly..

Y70%
by Y####:

Security Master protects your privacy

S70%
by S####:

Put my phone on hold

S70%
by S####:

Still learning but so far so good thanks

Q70%
by Q####:

Love it

S70%
by S####:

Great

X70%
by X####:

Good

S70%
by S####:

I love the security features

S70%
by S####:

I like it!

S70%
by S####:

I love the intruder selfie

S70%
by S####:

The last upgrade ruined the app lock disguise. Now it gives the game away because you can see the normal lock theme in the background and on top of it the massage that the application is stopped. Now someone who tries to open a locked app can easily guess that is locked. This was the best feature for me but now this app is no good. I have uninstsalled. You need to fix that. It was working so good. But not anymore

J70%
by J####:

Have liked so far but 2 things make me skeptical. First this app asking for almost all the permissions there are and second that it is owned by a company based in China. Are the devs willing to do anything to assure end users that their data esp. personal are not being sent to China for whatever reasons?

O70%
by O####:

what is going on??? when i tried to unlock app this pop up message just keep showing up... it said to enable the pop up window... i tried to find it in setting, but none of such thing permision is available... so annoying... please help me ????????????

F70%
by F####:

I loved this app but I cant remember my password for applock and I can't delete it since it is a device administrator and my phone won't let me. Please help i will have to buy another device. I have gine to FAQ and there is no button that says forgot password or want to delete Security Master? Please help

N70%
by N####:

I was using cmsecurity to protect my phone, but when someone clicked on the "use intruder selfie" they were able to bypass my lock and immediately decide a new password without being asked my password a single time.

S70%
by S####:

Dear Cheetah Mobile, This app is amazing! Before I downloaded it, I was watching a video on how to protect phones and devices from hackers. This made me need to download a protector. Most other protection apps I have used, are not very reliable or good but this on is A-MA-ZING!!! If my phone could talk, it would be thanking its hero. Thanks again!????

S70%
by S####:

VERY ANNOYING CONTINUAL PEEK NOTIFICATIONS even though Notification Mgr off! Had to disable "Draw over apps" permission to stop! Also, still needs AppLock pass???????????????? option, not just PIN or pattern! ???? Left ß because too many useless updates. Now, too many useless releases. What's going on?!

D70%
by D####:

I have one problem with the new update, when I open an app, you can see the lock screen while the "unfortunately, this app has stopped" screen shows up as well. I might as well not have the disguise on there. May you please please please please, fix this?

L70%
by L####:

So far doing a great job. Only thing is that there is a lot of adds when i have data. Its annoying

T70%
by T####:

Thanks to solve my issue ???? During unlock the apps if thumb sign shows green it will be look cool... Could you please add the option to hide private videos. And please increase the memory of private photos .thnks

S70%
by S####:

Indian government declares that you are stealing the information from our mobiles and giving them to unauthorised persons. Clarify please..

K70%
by K####:

Was OK for a while, then suddenly used 4 gig of cellular data in one afternoon. Yes I can turn off background data when not on WiFi, but what is all this data it is sending off? Very shady, use at you own risk. I recommend AVOID!!!


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Rating Distribution

RATING
4.75
24,228,426 users

5

4

3

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1