Defensive Engineering

SECURITY YOU CAN
MEASURE ON DEVICE.

Every protection documented on this page is a real platform mechanism read directly from the phone by the built-in Security Center 2.0 app. Nothing here is an unverified label or marketing claim.

SELinux: Enforcing Encryption: FDE Hardware Keys: 4096-bit Release View Threat Model →
0
Network Listeners

Zero open TCP/UDP ports listening on the phone interface.

0
SUID Binaries

Zero world-writable files, zero root binaries, zero debuggable packages.

10
Hardening Flags

Kernel hardening options merged into MSM8996pro tree in 1.5.0.

1
Trusted Key

The CYRONIX private release key is the only key accepted by OTA & recovery.

Defense In Depth

Security Layer Breakdown

From silicon hardware boundaries to user permissions, every level implements dedicated mitigations.

Layer Threat Vector Protection Mechanism Implementation Status
HARDWARE Cold-boot attack, offline memory extraction Qualcomm hardware cryptographic acceleration, TrustZone TEE, inline eMMC/UFS crypto IMPLEMENTED
BOOT Modified kernel, physical flash tampering Recovery signature checks via otacerts.zip. Note: AVB is not supported by 2016 OP3T bootloader. PARTIAL (Legacy Bootloader)
KERNEL Local privilege escalation, memory disclosure Yama LSM, software PAN (ARM64_SW_TTBR0_PAN), PANIC_ON_OOPS, removed KALLSYMS_ALL & SysRq IMPLEMENTED (1.5.0)
SELINUX Process breakout, service compromise Strict Enforcing mode, zero unconfined domains, granular HAL domain definitions IMPLEMENTED
VENDOR / HAL Proprietary driver vulnerabilities Sandboxed userspace HAL services communicating across isolated HIDL binder IPC IMPLEMENTED
FRAMEWORK Unauthorized background capability abuse Android 11 permission model, package visibility restrictions, device-admin policy controls IMPLEMENTED
SYSTEM Physical USB extraction (BadUSB) Kernel USB Restricted Mode (deny_new_usb): locked phone refuses new USB peripherals IMPLEMENTED (1.5.0 Default)
APPLICATION Malicious APK data harvesting UID sandboxing, per-app network firewall, Privacy Dashboard tracking IMPLEMENTED
NETWORK DNS interception, cleartext MITM Private DNS over TLS (DoT), strict TLS 1.2+ update server with HSTS and CSP IMPLEMENTED
USER Brute force passcode guessing Opt-in auto-erase after 10 consecutive failed unlock attempts IMPLEMENTED (1.5.0 Opt-in)

On-Device Verification

Security Center 2.0

One unified screen shows the phone's genuine posture with a score that measures only verifiable system facts:

  • Real platform and vendor security patch levels.
  • SELinux enforcing status and root binary absence.
  • USB restricted mode and lock-screen privacy enforcement.
  • Update signing certificate verification (warns if AOSP test keys are detected).
  • "Export security report" writes a plain-text report directly to Downloads with zero network access.
Read Technical Security Docs
Security Center 2.0 Diagnostic Readout
[+] SELinux Status: Enforcing
[+] Storage Encryption: Encrypted (FDE Hardware)
[+] USB Restricted Mode: Active (deny_new_usb=1)
[+] Update Trust Store: CN=CYRONIX OS (81:12:2A:86…7F:16)
[+] Kernel Yama LSM: ptrace_scope=1
[+] Platform Security Patch: 2024-02-05
[+] Vendor Security Patch: 2019-10-01 (Out of Date / Honest)
[+] Root Binaries: None Detected (0 su files)
[+] Active Network Listeners: 0 Ports