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Privacy By Design

At ContactsManager, privacy is the foundation of our platform. We’ve engineered our SDK to ensure user data remains secure and private throughout its lifecycle.

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Our Privacy Approach

ContactsManager takes a fundamentally different approach to contact management:
  • User Control: Contact data never leaves the user’s device without explicit consent
  • Zero Raw Data Access: Neither your application nor ContactsManager servers access raw contact data
  • Complete Transparency: Users always know exactly what data is being used and how

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Multi-layered Security

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Cryptographic Protection

We utilize advanced cryptographic techniques to secure contact data:
  • One-way Hashing: Contact identifiers are transformed using irreversible cryptographic hashing
  • Organizational Encryption Seeds: Secure organizational-level encryption seeds ensure data remains protected
  • Isolated Processing Environments: Sensitive operations run in secure, isolated contexts

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Comprehensive Encryption

Contact data is encrypted at every stage:
  • At Rest: Data stored on-device is protected with AES-256 encryption
  • In Transit: Any data transmission uses TLS 1.3 with perfect forward secrecy
  • In Memory: Sensitive information in memory is protected against inspection
  • On Device: Local storage uses platform-specific security features

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Secure Architecture

Our design minimizes security and privacy risks:
  • Minimal Data Exposure: Only the absolute minimum data leaves the device
  • Local Processing: Most operations happen directly on the user’s device
  • Ephemeral Processing: Contact data is kept in memory only as necessary

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Privacy Without Compromise

This approach enables powerful features while maintaining privacy:
  • Friend discovery without exposing contact lists
  • Social features without privacy trade-offs
  • Recommendation systems that keep raw data private

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Business Benefits

  • Regulatory Compliance: Built for GDPR, CCPA, and other privacy regulations
  • Reduced Liability: Your business never stores sensitive contact data
  • User Trust: Build confidence with privacy-conscious users
For more detailed information about our security architecture, visit contactsmanager.io/privacy.