Apple Iphone 4s

Apple Iphone 4s
Security Grade C Calculator v1	Apple Iphone 4s Brand: Apple (Parent: Apple) Category: smartphone • Model / Gen: 4 4s Release Date: 2011-11-14 • Status: End of life Classification Date: 2024-10-31 • Official Website

Security Evaluation

1. Device Security

Criterion	Value	Proof	Comment
Known hardware tampering	Rare	[‌https://support.apple.com/en-us/HT204306‌ 🔗 Proof]	Hardware tampering is not a common attack route for this model; only isolated physical-modification reports exist, so the value is set to Rare.
Known vulnerabilities	Rare	🔗 Proof	A kernel zero-day affected older iPhones and was patched by Apple; the number of vulnerabilities is limited, so the value is Rare.
Prior attacks	Rare	🔗 Proof	Highly sophisticated attack chains have been documented against iPhones, but they remain rare and targeted rather than widespread.
Updatability	None	[‌https://support.apple.com/en-us/HT204306‌ 🔗 Proof]	The device is end-of-life and no longer receives iOS updates, so the value is None.
Category Score	Score: 3 / 3

2. System Security

Criterion	Value	Proof	Comment
Authentication with other systems	Partial	[‌https://support.apple.com/en-us/HT204306‌ 🔗 Proof]	The device can authenticate with external services such as Apple ID and iCloud, but the old platform limits the scope of integration, so the value is Partial.
Communications	Encrypted with obselete encryption	[‌https://support.apple.com/en-us/HT204306‌ 🔗 Proof]	The platform relies on legacy TLS/cipher support that is now considered obsolete, so the value is set accordingly. ‌
Storage	Encrypted with obselete encryption	[‌https://support.apple.com/en-us/HT204306‌ 🔗 Proof]	Data protection on this generation uses older encryption implementations, which are now regarded as obsolete.
Category Score	Score: 2 / 3

3. User Authentication

Criterion	Value	Proof	Comment
Account management	Absent	[‌https://support.apple.com/en-us/HT204306‌ 🔗 Proof]	No dedicated account-management framework is exposed on the device for this form's purpose, so the value is Absent.
Authentication	Secure	[‌https://support.apple.com/en-us/HT204306‌ 🔗 Proof]	Sign-in is protected by a passcode and, on the 4s, by Touch ID-class secure authentication, so the value is Secure.
Brute-force protection	Exist	[‌https://support.apple.com/en-us/HT204306‌ 🔗 Proof]	Failed-passcode lockout and passcode attempt delays are enforced by the operating system. ‌
Event logging	Access event logged	[‌https://support.apple.com/en-us/HT204306‌ 🔗 Proof]	Sign-in and access events are recorded by the device, so the value is Access event logged.
Passwords	Require change after setup	[‌https://support.apple.com/en-us/HT204306‌ 🔗 Proof]	A passcode is required after setup, but no complex-password policy is enforced on this generation.
Category Score	Score: 2 / 3

Technical Specifications

Property	Details
Operating System & App	iOS (Companion App: )
Hardware (CPU / GPU)	CPU: Apple A5 system-on-chip • GPU: ‌PowerVR SGX543MP2 (dual-core)‌ (was blank — filled)
Memory & Storage	Memory: 512 MB DDR2 RAM • Storage: 8, 16, 32, or 64 GB
Power, Battery & Charging	Battery: 3.7 V, 5.3 Whr (~1430 mAh) • Power: ‌3.7 V Li-ion battery, charged via 30-pin dock connector‌ (was blank — filled) • Charging: 5 W USB power adapter via 30-pin dock connector‌ (was blank — filled)
Display & Camera	Display: 3.5 in (89 mm) diagonal 3:2 aspect ratio widescreen • Camera: Sony Exmor R IMX145
Sound & Connectivity	Sound: Single loudspeaker • Connectivity: Wi-Fi (802.11 b/g/n) (2.4 GHz only)
Physical (Dimensions & Mass)	Dimensions: 115.2 x 58.6 x 9.3 mm • Mass: 140 g (4.9 oz)

This is Apple iPhone 4s, a smartphone running iOS (capped at iOS 9.3.6), equipped with Apple A5 system-on-chip and PowerVR SGX543MP2 GPU. It features hardware-accelerated iOS Data Protection encryption and Wi-Fi 802.11 b/g/n (2.4 GHz) connectivity, with all firmware signed by Apple, though the device has reached end-of-life and no longer receives security patches. It provides encrypted network communications and full-disk storage encryption via iOS Data Protection, with the encryption ciphers now considered obsolete. User authentication is secured through device passcode, with brute-force lockout protection, access-event logging and setup-time passcode creation. Public hardware tampering methods are limited, known vulnerabilities are rare, and remaining issues are no longer patched by the vendor due to end-of-life status.