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Lang Kingdom - Best At English
com.langkingdom.langkingdom · Build 6.0.7
Analysis: complete. Static analysis completed for this build. A grade is not a guarantee of safety. Historical verification does not establish current reachability.
- Grade / score
- A · 94/100
- Finding categories
- 7
- Occurrences
- 15
- Scanned
- 2026-10-11T21:18:45.819Z
- Document issued
- 2026-10-13T18:42:19.111Z
- Historical verifications
- 0
Finding evidence
Open a category to review its occurrences. Printing includes all categories and occurrences.
Application data is backup-enabled · info · 1 occurrence
Backup is on by default on Android; this manifest states it explicitly. If the app stores sensitive local data, define dataExtractionRules/fullBackupContent to exclude it, or set android:allowBackup=false.
CWE-530 · CWE-312 · MASVS-STORAGE-1 · MASVS-STORAGE-2
android:allowBackup="true"
Amazon S3 bucket reference · low · 3 occurrences
Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open.
CWE-200 · CWE-284 · MASVS-STORAGE-2
http://█████████.s3-website-ap-southeast-2.amazonaws.com/███http://█████████.s3-website-ap-southeast-2.amazonaws.com/███https://████████████.amazonaws.com/███
Firebase Realtime Database reference · low · 3 occurrences
Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open.
CWE-200 · CWE-284 · MASVS-STORAGE-2
https://█████████████████████.firebaseio.com/███https://████████████.firebaseio.com/███https://██████████████.firebaseio.com/███
Google Cloud Storage reference · low · 1 occurrence
Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open.
CWE-200 · CWE-284 · MASVS-STORAGE-2
https://███████.googleapis.com/███
Google API key (client-shipped; restriction unverified) · low · 3 occurrences
Restrict the API key (application + API restrictions in Google Cloud Console); a client-shipped key is public, so restriction is the control.
CWE-798 · MASVS-STORAGE-1
AIza•••••••• (21–40 chars, redacted)AIza•••••••• (21–40 chars, redacted)AIza•••••••• (21–40 chars, redacted)
Firebase Storage bucket reference · low · 3 occurrences
Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open.
CWE-200 · CWE-284 · MASVS-STORAGE-2
████████████████████████████████████
Hardcoded credentials in a URL (third-party library artifact, shared across 6 unrelated developers) · low · 1 occurrence
Remove the embedded username:password, rotate the credential, and authenticate to the endpoint with short-lived per-user tokens instead.
CWE-798 · MASVS-STORAGE-1 · MASVS-AUTH-1
•••••••• (21–40 chars, redacted)
Control coverage
Mapped static evidence does not establish a control pass. Manual assessment remains separate.
| Control | Requirement | Recorded status |
|---|---|---|
| MASVS-STORAGE-1 | The app securely stores sensitive data. | Review signal |
| MASVS-STORAGE-2 | The app prevents leakage of sensitive data. | Review signal |
| MASVS-CRYPTO-1 | The app employs current strong cryptography and uses it according to best practices. | No static findings · not a pass |
| MASVS-CRYPTO-2 | The app performs key management according to best practices. | No static findings · not a pass |
| MASVS-AUTH-1 | The app uses secure authentication and authorization protocols. | Review signal |
| MASVS-AUTH-2 | The app performs local authentication securely. | Manual assessment |
| MASVS-AUTH-3 | The app secures sensitive operations with additional authentication. | Manual assessment |
| MASVS-NETWORK-1 | The app secures all network traffic according to current best practices. | No static findings · not a pass |
| MASVS-NETWORK-2 | The app verifies the identity of the remote endpoint (e.g. certificate pinning). | No static findings · not a pass |
| MASVS-PLATFORM-1 | The app uses IPC mechanisms securely. | No static findings · not a pass |
| MASVS-PLATFORM-2 | The app uses WebViews securely. | No static findings · not a pass |
| MASVS-PLATFORM-3 | The app uses the user interface securely. | Manual assessment |
| MASVS-CODE-1 | The app requires an up-to-date platform version. | No static findings · not a pass |
| MASVS-CODE-2 | The app has a mechanism for enforcing updates. | Manual assessment |
| MASVS-CODE-3 | The app only uses software components without known vulnerabilities. | No static findings · not a pass |
| MASVS-CODE-4 | The app validates and sanitizes all untrusted inputs and follows secure-coding practice. | No static findings · not a pass |
| MASVS-RESILIENCE-1 | The app validates the integrity of the platform. | Manual assessment |
| MASVS-RESILIENCE-2 | The app implements anti-tampering mechanisms. | Manual assessment |
| MASVS-RESILIENCE-3 | The app implements anti-static-analysis mechanisms. | Manual assessment |
| MASVS-RESILIENCE-4 | The app implements anti-dynamic-analysis techniques. | Manual assessment |
| MASVS-PRIVACY-1 | The app minimizes access to sensitive data and resources. | No static findings · not a pass |
| MASVS-PRIVACY-2 | The app prevents identification of the user. | No static findings · not a pass |
| MASVS-PRIVACY-3 | The app is transparent about data collection and usage. | No static findings · not a pass |
| MASVS-PRIVACY-4 | The app offers user control over their data. | Manual assessment |
Build identity and signature
- Scan ID
- 7b81b00a-51aa-489b-8d62-cd1e23175096
- APK SHA-256
d41b6b7322e76ab8ee2fe8df993de07e0fe717bc0cd381032bcdbdc22a3a45f7- Capsule SHA-256
c40612c11244a7ef8e6ef05b97b878e4ee3bfda1756a07dbfa1d996c65a7ea6c- Signing key
- IE6LeZNX4dAAPLGr
Verify the signed JSON at apk-scanner.com/verify. This printed view is a presentation of the signed record; the JSON is the verification artifact.