Xiaomi 9

Security Grade

A-

Calculator v1

Xiaomi Mi 9

   Brand: Xiaomi (Parent: Xiaomi Corporation)

   Category: Smartphone • Model / Gen: 9th (Mi series) M1902F1G

   Release Date: 2019-02-16 • Status: End of life

   Classification Date: 2025-10-17 • Official Website

Security Evaluation

Criterion	Value	Proof	Comment
Known hardware tampering	Rare	🔗 Proof	The bootloader can be officially unlocked, which is a supported feature for developers, not an unintended hardware vulnerability.
Known vulnerabilities	Rare	🔗 Proof	https://security.xiaomi.com/ Like all major smartphones, occasional software vulnerabilities are discovered but are typically patched through MIUI updates.
Prior attacks	None	🔗 Proof	There is no widespread public record of successful, targeted attacks specifically on the Xiaomi Mi 9 model.
Updatability	Rare	🔗 Proof	The device has reached its end-of-life for major Android OS updates. It received its planned MIUI/Android version updates but no longer gets security patches regularly.
Category Score	Score: 2 / 3

Criterion	Value	Proof	Comment
Authentication with other systems	Full	🔗 Proof	Integrates fully with Xiaomi's ecosystem (Mi Cloud, Mi Fit, etc.) using the Mi Account for authentication.
Communications	Encrypted with up-to-date encryption	🔗 Proof	Supports modern communication protocols like Wi-Fi 802.11 a/b/g/n/ac/ax (WPA3), Bluetooth 5.0, and encrypted cellular data (4G VoLTE).
Storage	Encrypted with up-to-date encryption	🔗 Proof	Uses full-disk encryption (FDE) based on the Android platform's standard to protect user data at rest.
Category Score	Score: 1 / 3

Criterion	Value	Proof	Comment
Account management	Basic	🔗 Proof	Requires a Mi Account for full device functionality (Find Device, cloud sync, etc.). Basic account creation and recovery options are available.
Authentication	Secure	🔗 Proof	Supports multiple secure unlock methods: PIN, Pattern, Password, and a fast and accurate In-display Fingerprint Sensor.
Brute-force protection	Exist	🔗 Proof	The device implements a timing delay after several failed unlock attempts, mitigating brute-force attacks.
Event logging	Partial logging	🔗 Proof	Security-relevant events like failed unlock attempts are logged internally but may not be fully accessible to the user.
Passwords	Require change after setup	🔗 Proof	The device forces the user to set a secure screen lock (PIN/pattern/password) during initial setup. Complexity requirements are basic (e.g., minimum length).
Category Score	Score: 2 / 3

Property	Details
Operating System & App	Android 9.0 (Pie), upgradable to Android 10, MIUI 12 (Companion App: N/A (Integrated MIUI system services))
Hardware (CPU / GPU)	CPU: Qualcomm Snapdragon 855 (7 nm); Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485) • GPU: Adreno 640
Memory & Storage	Memory: 6/8 GB RAM • Storage: 64/128 GB (UFS 2.1)
Power, Battery & Charging	Battery: Li-Po 3300 mAh, non-removable • Power: 27W wired charging • Charging: 27W wired, 20W wireless
Display & Camera	Display: 6.39 inches, Super AMOLED, 1080 x 2340 pixels, 403 ppi, HDR10 • Camera: Triple - 48 MP (wide), 12 MP (telephoto), 16 MP (ultrawide); Single 20 MP selfie camera
Sound & Connectivity	Sound: Loudspeaker, no 3.5mm jack • Connectivity: Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct; Bluetooth 5.0, A2DP, LE, aptX HD; GPS, GLONASS, BDS, GALILEO; NFC; Infrared port; USB Type-C 2.0
Physical (Dimensions & Mass)	Dimensions: 157.5 x 74.7 x 7.6 mm • Mass: 173 g