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Google Play Books & Audiobooks
com.google.android.apps.books · Build 2026.9.18.0 (389836)
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 · 91/100
- Finding categories
- 5
- Occurrences
- 11
- Scanned
- 2026-10-11T01:36:49.795Z
- Document issued
- 2026-10-13T18:40:44.098Z
- 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"
Firebase Realtime Database 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://████████████████████████████.firebaseio.com/███
Google API key (client-shipped; restriction unverified) · low · 6 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)AIza•••••••• (21–40 chars, redacted)AIza•••••••• (21–40 chars, redacted)AIza•••••••• (21–40 chars, redacted)
BIP39 wallet seed phrase (12 words, checksum valid) (third-party library artifact, shared across 12 unrelated developers) · low · 1 occurrence
A mnemonic seed phrase must never be embedded — any holder controls the wallet. Move funds to a new wallet immediately and never bundle key material.
CWE-312 · CWE-798 · MASVS-STORAGE-1 · MASVS-CRYPTO-2
BIP39 mnemonic (12 words) — redacted
Exported content provider without permission · medium · 2 occurrences
Set android:exported=false, or require a signature-level android:permission, and scope grantUriPermissions narrowly.
CWE-926 · CWE-284 · MASVS-PLATFORM-1
BooksProvider (exported, no permission)BooksProvider$PublicProvider (exported, no permission)
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. | Review signal |
| MASVS-AUTH-1 | The app uses secure authentication and authorization protocols. | Manual assessment |
| 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. | Review signal |
| 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
- 16d771ee-d86b-44be-a028-73ec11f72123
- APK SHA-256
a8d2c2038b9142608d090d56261215928ecaa334f1d948b100a1c2852a32655e- Capsule SHA-256
59442cec76a6c96fc5086bd74c92b1399f1669095de4d34630564a20db123d89- 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.