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Security & Privacy

Enterprise-grade security protecting your most sensitive health data

Multi-Layered Security Architecture

Heart Open implements defense-in-depth security principles, protecting your health data from device to cloud with military-grade encryption, authenticated connections, and zero-trust architecture. Every component is designed with security-first principles.

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Device Security Layer

ESP32-S3 Hardware Security

Secure boot process and encrypted flash storage protect firmware integrity and prevent unauthorized access.

  • Encrypted flash storage for sensitive credentials
  • Hardware random number generator for cryptographic keys
  • Secure boot verification with digital signatures
  • Memory protection and isolation

Sensor Data Integrity

MAX30102 sensor data is validated and sanitized before transmission to prevent data injection attacks.

  • Real-time data validation and anomaly detection
  • Sensor calibration and accuracy verification
  • Tamper detection mechanisms
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Transmission Security

MQTT over TLS (Port 8880)

All device communications use encrypted MQTT with TLS 1.2+ and mutual authentication via X.509 certificates.

  • TLS 1.2+ encryption with perfect forward secrecy
  • Mutual TLS authentication (mTLS)
  • Device-specific X.509 certificates
  • Certificate rotation and lifecycle management

AWS IoT Core Security

Enterprise-grade IoT message routing with built-in DDoS protection and rate limiting.

  • Message filtering and validation
  • Device authentication and authorization
  • Audit logging and compliance monitoring
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Data Storage Security

DynamoDB Encryption at Rest

All health data is encrypted at rest using AWS KMS with customer-managed keys and automated rotation.

  • AES-256 encryption with AWS KMS
  • Customer-managed encryption keys
  • Automated key rotation policies
  • Point-in-time recovery and backup encryption

S3 Bucket Security

Static assets and backups stored in S3 with versioning, encryption, and access controls.

  • Server-side encryption (SSE-S3/SSE-KMS)
  • Bucket policies and IAM integration
  • Versioning and MFA delete protection
  • Cross-region replication for disaster recovery
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Web Application Security

HTTPS/WSS Encryption

All web traffic encrypted with TLS 1.3 and secure WebSocket connections for real-time data.

  • TLS 1.3 with HSTS enforcement
  • Perfect Forward Secrecy (PFS)
  • Secure WebSocket (WSS) for real-time streaming
  • Certificate pinning and transparency

CloudFront CDN Security

Global content delivery with DDoS protection, geo-blocking, and WAF integration.

  • AWS Shield Standard and Advanced DDoS protection
  • Web Application Firewall (WAF) rules
  • Geographic access restrictions
  • Real-time monitoring and alerting
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Authentication & Access Control

AWS Cognito Authentication

Multi-factor authentication with OAuth 2.0, JWT tokens, and granular permission controls.

  • Multi-factor authentication (MFA) support
  • JWT token-based authentication
  • OAuth 2.0 and SAML integration
  • Password policies and breach detection

Role-Based Access Control

Granular permissions system ensuring users only access their own data and authorized friend networks.

  • Principle of least privilege
  • Resource-based permissions
  • Friend network authorization controls
  • Audit trails for all access attempts
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Privacy & Data Protection

Granular Privacy Settings

Users maintain complete control over what health data is shared and with whom.

  • Individual metric sharing controls
  • Time-based sharing permissions
  • Emergency access protocols
  • Data retention and deletion policies

Data Minimization

Only necessary health metrics are collected, processed, and stored according to purpose limitation principles.

  • Minimal data collection practices
  • Automated data anonymization
  • Right to be forgotten compliance
  • Transparent data usage policies

Real-time Threat Detection

AI-powered anomaly detection monitors for suspicious patterns and unauthorized access attempts.

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Security Monitoring

Comprehensive logging and monitoring of all system components with automated incident response.

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Zero-Downtime Updates

Security patches and updates deployed seamlessly without service interruption.

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Global Redundancy

Multi-region deployment ensures data availability and disaster recovery capabilities.

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Penetration Testing

Regular security assessments and vulnerability scanning by certified security professionals.

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Audit Compliance

Comprehensive audit trails and compliance reporting for healthcare data protection standards.

Security Standards & Compliance

Heart Open adheres to industry-leading security standards and regulatory requirements for healthcare data protection.

SOC 2 Type II
HIPAA Compliant
GDPR Ready
ISO 27001
AWS Security Best Practices
NIST Framework