We take the security of Programming Tutorials Pro seriously. This document outlines our security practices and how to report potential vulnerabilities.

We provide security updates for the following versions:

• Zero Data Collection: This application does not collect, store, or transmit any personal user data
• Local Storage Only: All progress and preferences are stored locally on the user's device
• No External Tracking: No analytics, tracking scripts, or third-party data collection
• GDPR Compliant: Full compliance with European data protection regulations

• Static Content: All tutorial content is static HTML/CSS/JavaScript
• No Server-Side Processing: No backend servers or databases to compromise
• HTTPS Only: Served exclusively over HTTPS when deployed
• Content Security Policy: Implemented CSP headers for XSS protection
• Subresource Integrity: All external resources verified with SRI hashes

• Service Worker Integrity: Service worker only caches known, safe resources
• Manifest Security: Web app manifest follows security best practices
• Origin Restrictions: PWA installation limited to verified origins
• Secure Headers: Security headers implemented for all responses

• TLS Encryption: All communications encrypted in transit
• HSTS Headers: HTTP Strict Transport Security enforced
• Certificate Transparency: SSL certificates logged for transparency
• DNS Security: DNSSEC validation where supported

• Cookie-Free: No tracking cookies used
• No Fingerprinting: No device or browser fingerprinting
• No Third-Party Analytics: No Google Analytics or similar services
• Local-First: All data remains on user's device

• Data Minimization: Only essential data stored locally
• Purpose Limitation: Data used only for app functionality
• Storage Limitation: Data automatically expires
• User Control: Users can clear all data anytime

• 404 Errors: Custom 404 page with helpful navigation
• 500 Errors: Server error page with recovery options
• 403 Errors: Access denied page with clear explanation
• Network Errors: Offline functionality maintained

• No Automatic Reporting: Errors not automatically sent anywhere
• User Privacy: Error details remain on user's device
• Debugging Information: Available in browser console only

• Code Editors: Client-side only, no code execution
• Terminal Simulators: Educational simulation, no system access
• Form Inputs: Sanitized and validated client-side

• Target="_blank": External links open in new tabs with rel="noopener noreferrer"
• Verified Sources: All external links point to official documentation
• No Malicious Content: All linked resources are verified safe

• Modern Standards: Uses modern web standards securely
• Fallback Security: Graceful degradation for older browsers
• Feature Detection: Progressive enhancement approach

If you discover a security vulnerability in this application, please follow these steps:

• Email: Create an issue in the repository with the label "security"
• Subject: "Security Vulnerability Report - Programming Tutorials Pro"

Please include the following information:

• Description of the vulnerability
• Steps to reproduce the issue
• Potential impact assessment
• Affected versions/browsers
• Suggested remediation (if known)
• Your contact information for follow-up

• Initial Response: Within 24 hours of report
• Assessment: Within 72 hours
• Resolution: Critical issues within 1 week, others within 2 weeks
• Disclosure: Coordinated disclosure after fix is deployed

• Only install the PWA from the official URL: s23010843.github.io/tutorial
• Verify the SSL certificate when visiting the site
• Ensure you're on the correct domain before installation

• Keep your browser updated for latest security patches
• Use HTTPS version of the site only
• Clear browser data periodically if desired
• Report any suspicious behavior immediately

• No personal information is required or requested
• All learning progress is stored locally on your device
• Uninstalling the PWA removes all local data
• No account creation or login required

This security policy covers:

• The main PWA application files
• All tutorial content and interactive elements
• Service worker implementation
• PWA manifest and installation process
• All static assets and resources

This policy does NOT cover:

• Third-party dependencies (user's browser security)
• External websites linked from tutorials
• User's device or network security
• Local development environments

• The PWA checks for updates when online
• Critical security fixes are deployed immediately
• Users are notified of important updates through the app
• Service worker handles seamless updates

Users can manually check for updates by:

1. Refreshing the application
2. Checking the browser's PWA update notifications
3. Reinstalling the PWA if needed
4. Clearing browser cache and reloading

• Follows OWASP guidelines for web application security
• Implements W3C security recommendations for PWAs
• Adheres to GitHub Pages security requirements
• Complies with modern web security standards

• GDPR Compliant: No personal data collection
• CCPA Compliant: No personal information sale or sharing
• COPPA Compliant: Safe for users under 13
• Privacy by Design: Built with privacy as core principle

• WCAG 2.1 AA: Accessible design prevents security issues
• Screen Reader Safe: No hidden malicious content
• Keyboard Navigation: Secure navigation patterns

• GitHub security advisories monitoring
• Dependency vulnerability scanning
• SSL certificate monitoring
• Content integrity verification

• Regular security assessments
• Code review processes
• Third-party security audits
• Penetration testing when applicable

For security-related questions or concerns:

• Repository: Issues Section
• Developer: S23010843
• Response Time: 24 hours for security issues
• Emergency Contact: Use repository issues with "urgent-security" label

We appreciate responsible disclosure of security vulnerabilities. Contributors who report valid security issues will be:

• Credited in the security acknowledgments (with permission)
• Notified when the issue is resolved
• Invited to verify the fix before public disclosure
• Recognized in our hall of fame

• OWASP Top 10
• PWA Security Best Practices
• GitHub Security Advisories
• MDN Web Security

• Mozilla Observatory
• Security Headers
• SSL Labs Test
• PWA Builder

Last Updated: December 2024 Next Review: June 2025 Version: 1.0

This security policy is reviewed and updated regularly to ensure it remains current with best practices and emerging threats.

🔒 Your security and privacy are our top priorities. Learn programming safely with Programming Tutorials Pro.