Coolpad Cool 20

Coolpad Cool 20
Security Grade B Calculator v	CoolpadCooL20 Brand: Coolpad (Parent: Coolpad Group Limited) Category: Smartphone • Model / Gen: 20th A3101 Release Date: 2021-05-01 • Status: In sale Classification Date: • Official Website

Security Evaluation

1. Device Security

Criterion	Value	Proof	Comment
Known hardware tampering	Rare	🔗 Proof	As a legitimate brand device, widespread hardware backdoors are uncommon. However, risks in the low-end supply chain cannot be entirely ruled out.
Known vulnerabilities	Rare	🔗 Proof	Runs an old Android version with no ongoing security patches, leaving it exposed to numerous publicly known vulnerabilities.
Prior attacks	Rare	🔗 Proof	No widely reported targeted attacks, but the high vulnerability count makes it susceptible to generic malware.
Updatability	Rare	🔗 Proof	Official support for both OS upgrades and security patches has been discontinued.
Category Score	Score: 2 / 3

2. System Security

Criterion	Value	Proof	Comment
Authentication with other systems	Partial	🔗 Proof	Supports basic screen lock methods (pattern, PIN, password). Unlikely to have a Trusted Execution Environment (TEE) for enhanced security.
Communications	Encrypted with obselete encryption	🔗 Proof	Relies on basic knowledge factors (PIN/pattern). Lacks more secure factors like a fingerprint sensor or facial recognition.
Storage	Encrypted with obselete encryption	🔗 Proof	Likely uses legacy Full-Disk Encryption (FDE) which is considered less secure than modern File-Based Encryption (FBE). The encryption strength may be outdated.
Category Score	Score: 2 / 3

3. User Authentication

Criterion	Value	Proof	Comment
Account management	Basic	🔗 Proof	Supports basic screen lock methods (pattern, PIN, password). Unlikely to have a Trusted Execution Environment (TEE) for enhanced security.
Authentication	Basic	🔗 Proof	Relies on basic knowledge factors (PIN/pattern). Lacks more secure factors like a fingerprint sensor or facial recognition.
Brute-force protection	Basic	🔗 Proof	Includes fundamental protections like timed delays after repeated failed unlock attempts.
Event logging	Partial logging	🔗 Proof	The system has basic logging capabilities, but these are not accessible to users and unlikely to detail security-specific events.
Passwords	Require change after setup	🔗 Proof	No evidence of forced password change or complexity requirements upon first use. Security relies heavily on user awareness.
Category Score	Score: 2 / 3

Technical Specifications

Property	Details
Operating System & App	Android (Companion App: https://www.coolpad.com/#/)
Hardware (CPU / GPU)	CPU: • GPU:
Memory & Storage	Memory: • Storage:
Power, Battery & Charging	Battery: • Power: • Charging:
Display & Camera	Display: • Camera:
Sound & Connectivity	Sound: • Connectivity:
Physical (Dimensions & Mass)	Dimensions: 164.3mm 75.66mm8.65mm • Mass: 199.6g