# Platform Security

BlueNexus AI is built with security as a fundamental principle.

All **BlueNexus infrastructure** (API endpoints, MCP servers, data connections etc.) run within Trusted Execution Environments (TEEs), providing hardware-level security and privacy guarantees.

All [**BlueNexus managed user accounts**](https://docs.bluenexus.ai/sovereign-accounts#user-sovereign-accounts) are sovereign in design, whereby user keys are unlocked and retained on the user's device, preventing BlueNexus from having any ability to unlock or access user accounts.

## Security Architecture

### Trusted Execution Environment (TEE)

All BlueNexus AI operations run within secure TEE environments that provide:

* **Hardware-level isolation** from the host system
* **Memory encryption** for data at rest and in transit
* **Attestation** to verify code integrity
* **Secure boot** to ensure trusted execution
* **Remote attestation** for third-party verification

### Multi-Layer Security

```
┌─────────────────────────────────────┐
│           Application Layer         │
├─────────────────────────────────────┤
│            API Gateway              │
├─────────────────────────────────────┤
│         TEE Infrastructure          │
├─────────────────────────────────────┤
│        Hardware Security            │
└─────────────────────────────────────┘
```

## Data Protection

### Encryption

* **At Rest**: All data encrypted using AES-256
* **In Transit**: TLS 1.3 for all communications
* **In Memory**: TEE memory encryption
* **Key Management**: Hardware Security Modules (HSM)

### Data Isolation

* **Tenant Isolation**: Complete data separation between users
* **Process Isolation**: Each operation runs in isolated TEE
* **Network Isolation**: Secure network boundaries
* **Storage Isolation**: Encrypted storage with access controls

## API Security

### Authentication

* **API Keys**: Secure token-based authentication
* **OAuth 2.0**: Industry-standard OAuth flows
* **JWT Tokens**: Signed and encrypted tokens
* **Multi-Factor Authentication**: Optional 2FA support

### Authorization

* **Role-Based Access Control (RBAC)**: Granular permissions
* **Scope-Based Access**: Fine-grained API access control
* **Resource-Level Permissions**: Per-resource access control
* **Audit Logging**: Complete access audit trail

### Rate Limiting

* **Per-User Limits**: Individual rate limiting
* **Per-Endpoint Limits**: Endpoint-specific limits
* **Burst Protection**: DDoS protection
* **Quota Management**: Usage-based quotas

## Network Security

### Transport Security

* **TLS 1.3**: Latest TLS protocol
* **Certificate Pinning**: Enhanced certificate validation
* **HSTS**: HTTP Strict Transport Security
* **Perfect Forward Secrecy**: Ephemeral key exchange

### Network Isolation

* **VPC**: Virtual Private Cloud isolation
* **Firewalls**: Network-level access controls
* **DDoS Protection**: Distributed denial-of-service protection
* **WAF**: Web Application Firewall

## Compliance & Standards

### Security Standards

* **SOC 2 Type II**: Security and availability controls
* **ISO 27001**: Information security management
* **GDPR**: General Data Protection Regulation compliance
* **CCPA**: California Consumer Privacy Act compliance

### Certifications

* **FIPS 140-2**: Cryptographic module validation
* **Common Criteria**: Security evaluation standard
* **FedRAMP**: Federal Risk and Authorization Management Program

## Incident Response

### Security Monitoring

* **24/7 Monitoring**: Continuous security monitoring
* **Threat Detection**: AI-powered threat detection
* **Anomaly Detection**: Behavioral analysis
* **Log Analysis**: Comprehensive log analysis

### Response Procedures

* **Incident Classification**: Severity-based response
* **Containment**: Rapid threat containment
* **Investigation**: Forensic analysis
* **Recovery**: Secure system recovery

## Security Best Practices

### For Developers

1. **Secure Coding**: Follow secure coding practices
2. **Input Validation**: Validate all inputs
3. **Error Handling**: Secure error handling
4. **Dependency Management**: Keep dependencies updated
5. **Secret Management**: Secure secret storage

### For Users

1. **Strong Passwords**: Use strong, unique passwords
2. **Two-Factor Authentication**: Enable 2FA when available
3. **API Key Security**: Protect API keys
4. **Regular Updates**: Keep software updated
5. **Access Review**: Regularly review access permissions

## Security Resources

### Documentation

* [TEE Infrastructure](https://docs.bluenexus.ai/platform/security-and-privacy/tee-infrastructure) - Detailed TEE information
* [Data Protection](https://docs.bluenexus.ai/platform/security-and-privacy/data-protection) - Data security measures
* [API Security](https://docs.bluenexus.ai/platform/security-and-privacy/api-security) - API security guidelines
* [Compliance](https://docs.bluenexus.ai/platform/compliance) - Compliance information

### Tools

* [Security Scanner](https://security.bluenexus.ai) - Security assessment tool
* [Compliance Dashboard](https://compliance.bluenexus.ai) - Compliance status
* [Security Advisories](https://advisories.bluenexus.ai) - Security updates

### Support

* [Security Contact](mailto:security@bluenexus.ai) - Security team contact
* [Bug Bounty](https://bounty.bluenexus.ai) - Security research program
* [Security Training](https://training.bluenexus.ai) - Security education

## Security Updates

Stay informed about security updates:

* **Security Bulletins**: Regular security updates
* **Vulnerability Disclosures**: Responsible disclosure process
* **Patch Management**: Automated security patches
* **Security Notifications**: Real-time security alerts

***

*Security is our top priority. If you discover a security vulnerability, please report it to <security@bluenexus.ai>*