Roblox Android Remote Attestation and GrapheneOS Support

Roblox Implements Android Remote Attestation to Combat Cheating

Roblox has introduced remote attestation security checks for Android devices to ensure that users are playing on physical hardware and using unmodified versions of the app on trusted operating systems. This hardware-level security measure is designed to prevent the use of cheat tools, modified applications, and emulators, which Roblox identifies as untrusted environments.

How Remote Attestation Works in Roblox

Remote attestation allows Roblox to verify the integrity of the device and the app remotely. When these checks are enabled—often by game creators for competitive or ranked modes—the system confirms two primary criteria:

1. Physical Hardware: The user is on a real, physical device rather than an emulator or virtual machine.
2. Software Integrity: The Roblox app is unmodified and the operating system version is trusted.

If a device fails these checks, users may encounter error messages stating that the place requires a trusted operating system, that the bootloader must be locked, or that the game's integrity could not be verified. While users can still play games that do not require these strict security levels, access to high-security lobbies is blocked to maintain fairness.

Official Support for GrapheneOS

In a move unusual for large software publishers, Roblox has explicitly stated that it supports GrapheneOS, provided the bootloader remains locked.

To maintain support for third-party ROMs, Roblox requires that the OS meets the following technical standards:

• AOSP Security Model: The ROM must not break the Android Open Source Project (AOSP) security model.
• Locked Bootloader: The OS must support installation with a locked bootloader.
• Verified Boot: The ROM must properly configure and publish self-signed verified boot keys.
• Current Patch Levels: The OS must be updated promptly to the latest AOSP patch levels.

Failure to adhere to these standards will result in the removal of the ROM from the set of supported verified boot keys.

Supported and Unsupported Android Devices

Remote attestation is a hardware-level feature determined by the manufacturer and OS, not a setting within the Roblox app.

Known Supported Devices Include:

• Google: Pixel 4 and above
• Samsung: Galaxy S10 and above, Galaxy A03 and above, Galaxy Tab A7 Lite and above, and M21 and above
• Xiaomi: Redmi 13+, Redmi A3+, Redmi Note 11+, Redmi Pad 2+, and various POCO models (C71, X7 Pro)
• Motorola: Various Moto G and E series (e.g., G04s, G05, G06, G15, G20, G22, G24, G34 5G, G54 5G, E13)
• Other Brands: Specific models from OPPO, Infinix, Realme, TECNO, Vivo, and Lenovo.

Unsupported Environments:

• Android Emulators: Treated as un-trusted.
• Amazon Fire Devices: Not expected to be supported.
• Rooted Devices: Rooting, custom firmware, or unlocking the bootloader typically breaks hardware attestation.

Community Perspectives on OS Support

Technical users and the community have noted that GrapheneOS is uniquely positioned among third-party ROMs among third-party ROMs because it is the only one that prioritizes making app attestation work.

"Truth be told, GrapheneOS is the only third party ROM that bothers to make app attestation work."

Some users have expressed frustration that other popular custom ROMs, such as LineageOS, are blocked because they typically require an unlocked bootloader, which breaks the security chain required for remote attestation.

Others view the official acknowledgment of GrapheneOS as a positive signal for the growth of privacy-focused operating systems.