Security Best Practices

Protect your hardware investment, personal data, and earnings through comprehensive security measures and operational protocols.

System Isolation

Container Security

Mandatory Isolation Requirements:

Dedicated user account for GPUFlow operations
Restricted file system access (no personal data exposure)
Network segmentation from personal devices
Process isolation using container technology

Implementation Steps:

Create dedicated system user: gpuflow-runner
Configure limited sudo permissions for GPU operations only
Mount minimal filesystem: /tmp, /var/log/gpuflow, GPU device files
Block access to: /home, /root, personal storage directories

Network Segmentation

Firewall Configuration:

# Essential ports only
Allow inbound: 22 (SSH), 5173 (Web interface), 8082-8083 (Container relay)
Block: 139, 445 (SMB), 21 (FTP), 23 (Telnet), 3389 (RDP)

VPN Tunnel Approach:

Renters connect through WireGuard tunnels only
No direct internet exposure of GPU services
Each rental session uses unique tunnel keys
Automatic key expiration at session end

Router-Level Protection:

Separate VLAN for GPU provider machine
Block lateral network movement to other devices
Monitor traffic patterns for unusual activity
Enable DDoS protection if available

Access Control

Authentication Layers

Multi-Factor Requirements:

Platform account: Email + 2FA (Google Authenticator, Authy)
System access: SSH keys only, disable password login
Emergency access: Hardware token or recovery codes

Session Management:

Maximum session duration: 24 hours
Automatic logout on inactivity: 30 minutes
Force re-authentication for sensitive operations
Log all authentication attempts and failures

Permission Management

Principle of Least Privilege:

GPU access: Hardware manipulation only
File system: Read-only except designated work directories
Network: Outbound connections limited to approved destinations
System calls: Restricted set using seccomp profiles

Renter Capability Limits:

Allowed:
- GPU compute operations
- Temporary file creation in /tmp/rental-session
- Network access for downloading models/data
- Standard development tools

Prohibited:
- Persistent storage beyond session
- System configuration changes
- Other hardware device access
- Network scanning or port probing

Data Protection

Personal Information Security

Data Classification:

Never Accessible: Personal files, browser data, email, documents
System Only: OS configuration, installed software lists
Limited Access: GPU specifications, performance metrics
Renter Visible: Container environment, allocated resources

Storage Isolation:

Encrypt personal data partitions
Use separate drives for rental operations
Enable full-disk encryption on primary storage
Automatic secure deletion of renter data post-session

Backup and Recovery

Critical Data Backup:

GPUFlow container configurations
Earnings and transaction records
System security logs and audit trails
Recovery keys and authentication secrets

Backup Security:

Encrypted backups stored offline
Regular restoration testing (monthly)
Version control for configuration changes
Secure key management for decryption

Hardware Protection

Physical Security

Environmental Controls:

Temperature monitoring with automated alerts
Surge protection and UPS for power stability
Adequate ventilation to prevent overheating damage
Physical access controls to prevent tampering

Hardware Monitoring:

GPU temperature limits: Hard shutdown at 90°C
Memory error detection and reporting
Fan speed monitoring with failure alerts
Power consumption tracking for anomaly detection

Usage Limitations

Resource Governors:

Maximum power consumption limits per session
Temperature-based performance scaling
Memory allocation caps per renter
CPU usage limits to prevent system lock-up

Automated Protection:

Critical Actions:
- Shutdown GPU if temperature >90°C
- Kill processes exceeding memory limits
- Block network traffic to private IP ranges
- Terminate sessions attempting privilege escalation

Financial Security

Payment Protection

Wallet Security:

Use separate wallet addresses for receiving payments
Enable multi-signature for large earnings accumulation
Regular withdrawal to cold storage wallets
Monitor for suspicious transaction patterns

Earnings Management:

Daily earnings tracking and reconciliation
Automated alerts for payment delays or discrepancies
Backup payment methods for platform issues
Tax reporting preparation and documentation

Fraud Prevention

Renter Verification:

Identity verification for high-value rentals
Payment method validation before session start
Behavior pattern analysis for abuse detection
Community reputation system participation

Platform Security:

Two-factor authentication on all accounts
Strong, unique passwords for each service
Regular security audit participation
Incident reporting for suspicious activities

Operational Security

Monitoring and Logging

Essential Log Categories:

Authentication events (success/failure)
Resource usage patterns and anomalies
Network connection attempts and patterns
System performance and hardware health

Alert Configuration:

Immediate Response Required:
- Failed authentication attempts >5 per hour
- GPU temperature >85°C sustained
- Unusual network traffic patterns
- System resource exhaustion

Daily Review:
- Earnings reconciliation discrepancies
- New renter background verification
- Hardware performance degradation trends
- Security log anomaly patterns

Incident Response

Security Event Classification:

Critical: Data breach, system compromise, hardware damage
High: Unauthorized access attempts, policy violations
Medium: Performance issues, configuration problems
Low: Routine maintenance, minor connectivity issues

Response Procedures:

Immediate: Isolate affected systems, preserve evidence
Assessment: Determine impact scope and root cause
Mitigation: Implement fixes and prevent recurrence
Recovery: Restore normal operations safely
Review: Update procedures based on lessons learned

Compliance and Legal

Privacy Protection

Data Handling Requirements:

No collection of renter personal data beyond platform requirements
Automatic deletion of session data within 24 hours
Compliance with local privacy regulations (GDPR, CCPA, etc.)
Clear privacy policy disclosure to renters

Geographic Restrictions:

Verify legal compliance in your jurisdiction
Understand export control restrictions for certain technologies
Implement location-based access controls if required
Maintain documentation for regulatory inquiries

Insurance Considerations

Coverage Evaluation:

Hardware damage from renter activities
Liability for renter-caused third-party damages
Business interruption from security incidents
Professional liability for service delivery failures

Risk Assessment:

Regular security audits and penetration testing
Hardware valuation and replacement cost analysis
Income protection for extended outages
Legal defense coverage for compliance issues

Advanced Security Measures

Threat Detection

Behavioral Analysis:

Baseline establishment for normal operations
Anomaly detection for unusual resource usage
Network traffic pattern recognition
Automated response to detected threats

Security Intelligence:

Integration with threat intelligence feeds
Participation in security community sharing
Regular security assessment updates
Professional security consultation when needed

Continuous Improvement

Security Posture Management:

Monthly security review and updates
Quarterly penetration testing (self or professional)
Annual comprehensive security audit
Continuous education on emerging threats

Community Engagement:

Participate in provider security forums
Share anonymized threat intelligence
Contribute to security best practices development
Maintain awareness of platform security updates

Emergency Procedures

Security Incident Response

Immediate Actions:

Disconnect from network if compromise suspected
Preserve system logs and evidence
Contact platform support for assistance
Document timeline and observed effects

Recovery Planning:

Maintain current system backups
Test restoration procedures regularly
Keep emergency contact information accessible
Prepare alternative earning strategies during downtime

Hardware Failure Response

Protection Measures:

Automated shutdown on critical hardware alerts
Redundant monitoring systems for reliability
Emergency contact procedures for renters
Insurance claim documentation and procedures