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Security

Understanding Face ID Protection for Your Documents

November 10, 2025 | 8 min read | KinArchive Team

Your family's most sensitive documents deserve the highest level of protection. Face ID and Touch ID represent a quantum leap in security technology, making it virtually impossible for unauthorized users to access your documents while keeping it effortlessly convenient for you. Here's everything you need to know about biometric security in KinArchive.

1 in 1M

Probability of someone else unlocking your Face ID

< 1s

Average time to authenticate with Face ID

Zero

Biometric data stored on our servers

What is Face ID and How Does It Work?

Face ID is Apple's facial recognition technology that uses advanced machine learning algorithms and sophisticated sensors to create a detailed 3D map of your face. Unlike simple photo recognition, Face ID projects over 30,000 invisible infrared dots onto your face to create a precise depth map.

The Technology Behind Face ID:

  • TrueDepth Camera: Projects and analyzes over 30,000 invisible dots to create a detailed facial map
  • Neural Networks: The A-series chip's Neural Engine processes facial data in real-time
  • Secure Enclave: Your facial data never leaves your device and is stored in a protected area of the chip
  • Attention Awareness: Requires you to be looking at your device with eyes open
  • Adaptive Recognition: Learns subtle changes in your appearance over time

Security First

Your biometric data never leaves your iPhone or iPad. KinArchive doesn't have access to your Face ID or Touch ID information—we simply receive a secure confirmation that you've been authenticated by your device's secure enclave.

Why Face ID is More Secure Than Passwords

Traditional passwords, even strong ones, have fundamental vulnerabilities that biometric authentication eliminates:

Password vs. Face ID Security Comparison

Traditional Password
  • Can be guessed or stolen
  • Often reused across services
  • Vulnerable to phishing attacks
  • Can be forgotten
  • Can be shared (intentionally or not)
  • Written down on paper or notes
Face ID
  • Cannot be guessed or easily stolen
  • Unique to each person and device
  • Resistant to replay attacks
  • Always "with you"
  • Requires physical presence
  • Cannot be written down or intercepted

Setting Up Face ID Protection in KinArchive

Enabling Face ID protection in KinArchive takes less than a minute and provides multiple layers of security customization:

Step-by-Step Setup Guide:

  1. Open KinArchive Settings: Tap the gear icon in the top-right corner
  2. Navigate to Security: Select "Security & Privacy" from the settings menu
  3. Enable Face ID: Toggle "Require Face ID" to ON
  4. Choose Security Level:
    • App Launch: Require Face ID every time you open the app
    • Document Access: Require Face ID when viewing sensitive documents
    • Sharing Actions: Require Face ID before sharing any document
    • Settings Changes: Require Face ID to modify security settings
  5. Set Auto-Lock Timeout: Choose how long the app stays unlocked (Immediate, 1 min, 5 min, 30 min)
  6. Configure Fallback: Set up a secure passcode as backup if Face ID fails

Recommended Security Settings

For maximum security with minimal inconvenience, we recommend:

  • Require Face ID on app launch
  • Require Face ID for document sharing
  • Set auto-lock to 5 minutes
  • Enable "Require passcode after device restart"

Advanced Security Features

KinArchive goes beyond basic Face ID integration to provide comprehensive security:

1. Per-Document Security Levels

Not all documents require the same level of protection. KinArchive lets you set individual security levels:

  • Standard: Protected by app-level Face ID
  • Sensitive: Requires additional Face ID authentication to view
  • Highly Sensitive: Requires Face ID + security question to access

2. Failed Authentication Tracking

KinArchive logs all authentication attempts, including failed ones. You'll receive notifications if someone attempts to access your documents without authorization.

3. Device-Specific Authorization

When you access KinArchive from a new device, you'll need to authorize it using Face ID on your primary device, creating a chain of trust across your devices.

4. Temporary Access Codes

Need to share access in an emergency? Generate time-limited access codes that expire automatically after use or after a set time period.

Face ID for Family Sharing

When you share documents with family members, Face ID ensures security without complexity:

  • Individual Authentication: Each family member uses their own Face ID to access shared documents
  • Access Logs: See who accessed shared documents and when
  • Revocation: Instantly revoke access when needed
  • Permission Levels: Set view-only or edit permissions per family member

Touch ID: An Equally Secure Alternative

For devices without Face ID, Touch ID provides equivalent security using your fingerprint. The same principles apply:

  • 1 in 50,000 probability of false match
  • Fingerprint data stored in Secure Enclave
  • Never transmitted to Apple or KinArchive
  • Works seamlessly with KinArchive's security features

Common Questions About Biometric Security

What if Face ID fails?

KinArchive always provides a secure passcode fallback. If Face ID fails multiple times (poor lighting, wearing sunglasses, etc.), you can authenticate using your device passcode.

Can someone access my documents while I'm sleeping?

No. Face ID's attention awareness requires you to be looking at your device with your eyes open. This prevents unauthorized access while you're asleep or not paying attention.

What happens if I lose my device?

Your biometric data is stored only on your device, not in the cloud. If you lose your device:

  1. Use Find My iPhone to lock or erase the device remotely
  2. Your documents remain encrypted in iCloud
  3. Sign in to KinArchive on a new device using your Apple ID
  4. Set up Face ID on the new device
  5. All your documents sync securely

Does Face ID work with masks?

On iPhone 12 and later with iOS 15.4+, Face ID can work with masks if you've set up the feature in your device settings. KinArchive supports this functionality automatically.

Best Practices for Maximum Security

  1. Enable all security layers: Use Face ID for app launch, document access, and sharing
  2. Regular security audits: Review access logs monthly
  3. Update your passcode: Change your backup passcode every 6 months
  4. Monitor authorized devices: Remove old devices from your authorized list
  5. Enable two-factor authentication: Add an extra layer to your Apple ID
  6. Keep iOS updated: Security improvements come with each update

Secure Your Family's Documents Today

Experience the perfect balance of security and convenience with Face ID-protected document storage.

Download KinArchive