The app has state-of-the-art security, and is also resilient against specific, clearly defined client-side attacks, such as tampering, modding, or reverse engineering to extract sensitive code or data. Such an app either leverages hardware security features or sufficiently strong and verifiable software protection techniques. MASVS-R is applicable to apps that handle highly sensitive data and may serve as a means of protecting intellectual property or tamper-proofing an app.