+MASTG-BEST-0014 Preventing Screenshots and Screen Recording (Android)

MASTG-BEST-0014 Preventing Screenshots and Screen Recording (Android)

Platform: Android

Ensure the app hides sensitive content, such as card numbers and passcodes, from screenshots, screen recording, nonsecure displays, task switcher thumbnails, and remote screen sharing. Malware may capture screen output and extract confidential information. Protect on screen keyboards or custom keypad views as they may leak keystrokes from passcode fields. Screenshots can be saved in locations accessible to other apps or a local attacker.

Setting FLAG_SECURE on the window prevents screenshots (or appear black), blocks screen recording, and hides content on nonsecure displays and in the system task switcher.

<div style="display:flex; flex-wrap:wrap; gap:16px; align-items:flex-start; margin:16px 0;">
<figure style="flex:1 1 220px; margin:0; text-align:center;">
<img src="Images/Chapters/0x05d/task-switcher-without-flag-secure.png" width="200" alt="Task switcher without FLAG_SECURE">
<figcaption>Without FLAG_SECURE</figcaption>
</figure>
<figure style="flex:1 1 220px; margin:0; text-align:center;">
<img src="Images/Chapters/0x05d/task-switcher-with-flag-secure.png" width="200" alt="Task switcher with FLAG_SECURE">
<figcaption>With FLAG_SECURE</figcaption>
</figure>
</div>

You can follow the official documentation to implement FLAG_SECURE in your app, see "Secure sensitive activities".

1. Panoramica

Titolo	Standard

1.1 Riferimenti

1.2 Requisiti identificati

1.3 Regolamentazioni correlate

2. Requisiti identificati

Requisiti
Fonte	Requisito

3. Regolamentazioni correlate

Regolamentazioni
Fonte	Regolamentazione

Ticket collegati

Collegamenti
Tipo di collegamento	Ticket
is related to	MASTG-TEST-0289 Runtime Verification of Sensitive Content Exposure in Screenshots During App Backgrounding (Android)
is related to	MASTG-TEST-0291 References to Screen Capturing Prevention APIs (Android)

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- OWASP Application Security Verification Standard (ASVS) 5.0.0, Mai 2025, aus OWASP/ASVS: © 2008-2025 The OWASP Foundation, lizenziert unter CC BY-SA 4.0. Änderungen: in Abschnitte aufgeteilt und in das GRCA-Format umgewandelt, der Wortlaut unverändert. Diese Bearbeitungen stehen ebenfalls unter CC BY-SA 4.0.
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