🛡️ How SecureFone Works
Hardened OS. Encrypted protection. Complete control.
SecureFone devices are powered by GrapheneOS — a high-security, open-source mobile operating system based on Android, built specifically for Google Pixel hardware.
Where typical phones track users and collect data, GrapheneOS offers a hardened, de-Googled, encrypted platform for those who demand privacy and control.
🔐 Key Security Features
🔒 Full Device Encryption
- Uses AES-256 file-based encryption (FBE) for all user data
- Encryption keys are protected and managed by the Titan M2 security chip
- Without your PIN/password, data remains cryptographically inaccessible
🧠 Advanced Exploit Mitigations
- Defends against memory exploits using Control Flow Integrity (CFI), Shadow Call Stack, and hardened
malloc - Includes kernel hardening, stricter seccomp policies, and fortified system libraries
🧱 App Isolation & Sandboxing
- Each app runs in its own strict sandbox, isolated from system and user data
- You can restrict network access per app
- Enhanced SELinux policies provide extra process-level separation
🚨 Duress Mode & Secure Wipe
- Duress PIN unlocks a decoy profile while keeping your real encrypted data hidden
- Auto-wipe option securely erases user data after multiple failed login attempts
- No visible signs of self-destruct behavior — fully discreet
🧩 App Compatibility & Freedom
- ✅ Use apps from F-Droid, Aurora Store, or direct APKs
- ✅ Optional sandboxed Google Play support (Google apps with zero system access)
- ❌ No Google spyware, no preinstalled Play Services, no background telemetry
👥 Built for Critical Professionals
Designed for:
- 📰 Journalists and whistleblowers
- ⚖️ Lawyers, medical professionals, therapists
- 🧑💻 Cybersecurity specialists and engineers
- 🕊️ Human rights defenders and NGOs
- 🧍 Anyone who values personal sovereignty and data protection
✅ What You Get with a SecureFone
- 📱 A Pixel phone preinstalled with the latest verified version of GrapheneOS
- 🔒 Secure Boot enabled and bootloader locked for maximum integrity
- 🧩 Optional apps preinstalled, like Signal, KeePassDX, Simple Mobile Tools
- 🧠 Your choice of private configurations — no accounts required
🧾 Technical Footnotes
Sandboxed Play Services: Runs as a regular app without special permissions or privileges — prevents Google from accessing other apps or device identifiers.
File-Based Encryption (FBE): Allows separate encrypted storage contexts for each user profile.
Titan M2 Chip: A secure enclave processor used to store encryption keys, manage verified boot, and protect from rollback attacks.
Duress PIN: Requires at least two user profiles (main + decoy). Setup involves configuring secondary users with no sensitive data.
Auto-Wipe Functionality: Optional via user-side configuration or scripts (e.g. through reboot_on_userlock_failure + wipe_user_data_after_failures).
GrapheneOS OTA Updates: Signed with reproducible builds, verified cryptographically, and delivered directly over HTTPS.
Sandboxed Play Services: Runs as a regular app without special permissions or privileges — prevents Google from accessing other apps or device identifiers.
FAQ
Most likely, yes. You can install apps using:
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F-Droid (for open-source apps)
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Aurora Store (access to Google Play apps without a Google account)
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Or direct APKs (if you trust the source)
Need a specific app? Just ask us — we’ll help you check compatibility.
Absolutely. SecureFone is preconfigured and ready to use out of the box.
If you can use a regular smartphone, you can use SecureFone. We remove unnecessary complexity and include an optional quick-start guide and support resources to help you get started.
You don’t need to be a hacker or IT expert to protect your privacy.
Because Google Pixel devices are the only modern smartphones that support full Verified Boot with user-controlled keys, hardware-based security (Titan M2 chip), and open-source firmware for critical components.
These devices allow GrapheneOS to replace the stock OS completely and enforce deep security hardening — something no other mainstream phones currently support.
In short: Pixel phones offer the best foundation for security, privacy, and control.
It is not advised but yes, you can. SecureFone supports sandboxed Google Play Services, which means:
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You can install and use apps like Google Maps, Gmail, and YouTube
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Google Services run in user space (like regular apps), without privileged access or tracking
You get access to the apps without compromising your system’s privacy or security.
Yes. You can install WhatsApp, Facebook, Instagram, and other popular apps.
We strongly recommend privacy-respecting alternatives like Signal, but we understand you may need to stay in touch with others — and SecureFone gives you the freedom to choose.
GrapheneOS is the most secure and private mobile OS available today — used by journalists, lawyers, and security professionals worldwide.
It improves Android’s privacy model, enhances app sandboxing, and adds exploit protection and hardware-level encryption — all while staying fast and easy to use.
Unlike other “de-Googled” phones, GrapheneOS is actively developed by security researchers and supports timely updates and verified boot.
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No Google telemetry or background tracking
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App sandboxing keeps apps isolated from each other
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Per-app network, sensor, and permission controls
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Encrypted storage tied to your secure lock screen
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Hardware security chip (Titan M2) handles key protection and verified boot
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Duress login and optional self-destruct for high-risk situations
It’s a full-stack approach — from hardware to software — to protect your digital life.
Most “privacy phones” are either:
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Stock Android with a few tweaks — still leaking data
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Linux phones — not usable for daily communication
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De-Googled phones — lacking updates or critical security
SecureFone with GrapheneOS is different:
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✅ Weekly updates, full hardware support
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✅ Locked bootloader & verified boot
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✅ Security hardened by experts
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✅ Real user freedom and app compatibility
You won’t be able to:
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Use Google Assistant or device-wide voice commands
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Use push notifications for some Google-dependent apps (unless Google Services are installed)
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Link your phone to proprietary Google ecosystems like smart homes or Android Auto — unless you re-enable those parts
But for most users, daily functionality like messaging, maps, browsing, and email works great — without the surveillance.
Yes. SecureFone works with all standard 4G/5G SIM cards from major carriers.
Just insert your SIM and you’re good to go — your phone number stays the same.
We recommend avoiding carrier apps or profiles to reduce tracking, but that’s optional.
This is expected behavior. Google Pixel devices show a “Your device is loading a different operating system” warning when the verified boot process detects a custom OS — such as GrapheneOS — instead of Google’s stock Android.
This message appears because:
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GrapheneOS replaces the factory-signed firmware with its own cryptographically signed OS
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The bootloader remains locked and secure, but the OS is not signed by Google, so the device shows a cautionary prompt
✅ There’s no danger — your phone is still secure.
In fact, this message is a good sign: it means verified boot is working, and your OS hasn’t been tampered with.
🔒 SecureFone devices are fully verified and locked before shipping. The bootloader warning simply reflects your choice to run a privacy-respecting, custom OS.
