Privacy Policy

1. Introduction

Total Technology Zone ("we", "us", or "our") operates the System Design Masterclass platform. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our website and use our services. By using the platform, you consent to the practices described in this policy.

2. Information We Collect

2.1 Information You Provide

• Account data: Name, email address, and password when you create an account
• Payment data: Payment information processed securely through Stripe or Razorpay (we do not store full card numbers)
• Profile data: Avatar, bio, and preferences you choose to share
• Communications: Messages you send to our support team

2.2 Information Collected Automatically

• Usage data: Pages viewed, lessons completed, quiz scores, time spent on content, and learning streaks
• Device data: Browser type, operating system, screen resolution, and IP address
• Cookies: Session cookies for authentication and preference cookies for theme and settings

3. How We Use Your Information

We use the information we collect to:

• Provide, operate, and maintain the learning platform
• Track your learning progress, XP, streaks, and achievements
• Process payments and manage subscriptions
• Send transactional emails (account verification, password resets, receipts)
• Send optional marketing emails (new lessons, features) that you can opt out of at any time
• Improve our content and platform based on usage patterns and feedback
• Display leaderboards and community features (opt-in)
• Prevent fraud and enforce our Terms of Service

4. Data Sharing

We do not sell your personal information. We may share data with:

• Payment processors: Stripe and Razorpay to process transactions
• Hosting providers: Vercel for application hosting, Neon for database services
• Analytics: Aggregated, anonymized usage data to improve the platform
• Legal compliance: When required by law, court order, or government request

5. Data Security

We implement appropriate technical and organizational measures to protect your personal information, including:

• Encryption of data in transit (TLS/HTTPS)
• Encryption of sensitive data at rest
• Secure, HTTP-only session cookies
• Regular security audits and dependency updates
• Access controls and role-based permissions for staff

While we strive to protect your data, no method of transmission over the Internet is 100% secure. We cannot guarantee absolute security.

6. Cookies

We use the following types of cookies:

• Essential cookies: Required for authentication and core platform functionality
• Preference cookies: Store your theme (light/dark) and display preferences
• Analytics cookies: Help us understand how the platform is used (anonymized)

You can control cookies through your browser settings, but disabling essential cookies may affect platform functionality.

7. Your Rights

Depending on your jurisdiction, you may have the right to:

• Access, correct, or delete your personal information
• Export your data in a portable format
• Opt out of marketing communications
• Request restriction of data processing
• Lodge a complaint with a data protection authority

To exercise any of these rights, contact us at the email below.

8. Data Retention

We retain your account data and learning progress for as long as your account is active. If you delete your account, we will remove your personal data within 30 days, except where we are required to retain it for legal or compliance purposes.

9. Children's Privacy

The Service is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If we learn that we have collected such data, we will delete it promptly.

10. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated revision date. We encourage you to review this policy periodically.

11. Contact Us

If you have questions or concerns about this Privacy Policy, please contact us at privacy@systemdesignmasterclass.com.