Security Master
v121 · 33.7 MB · code 4194425
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File information
UpdatedAug 20, 2023
PublishedJul 22, 2021
Packagecom.securitycentery
Versionv121 (4194425)
Size33.7 MB
MD54d429c66e2975d47bc46cb59193e0482
Min SDK19
ABIsx86-64
Malware scanTRUSTED
Signature SHA12C:25:E8:65:A2:24:0E:A7:46:43:AB:5C:78:FC:92:2A:47:24:DA:D5
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads10,000,000
This version10,000,000
DeveloperWTX Apps Corp
Age ratingEveryone
What's new in v121
Security Master is a reliable ALL-IN-ONE solution for all your device’s needs.
This is not an ordinary utility app. It offers laconic and user friendly interface that allows to understand the main features of the application even for those who are far from the realm of technology.
New in this version: Policy fix
This is not an ordinary utility app. It offers laconic and user friendly interface that allows to understand the main features of the application even for those who are far from the realm of technology.
New in this version: Policy fix
Security scan
TRUSTED
- Developer signature verified 2023-08-20
- Signature SHA1 2C:25:E8:65:A2:24:0E:A7:46:43:AB:5C:78:FC:92:2A:47:24:DA:D5
- File MD5 4d429c66e2975d47bc46cb59193e0482
How to install Security Master v121 on Android 4.4 KitKat+
Takes about 2 minutes. You'll need roughly 33.7 MB of free storage.
- Grab com.securitycentery_4194425.apk — hit the Download button above (33.7 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 4d429c66e2975d47…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.securitycentery_4194425.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Security Master — tap Open on the install screen, or find the Security Master icon in your app drawer (this build targets x86-64 devices).
Common install errors for Security Master
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 4.4 KitKat or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.