Privacy Policy

1. Who we are

Cyberlium (https://cyberlium.com) is a free cybersecurity learning platform. This policy explains what information we collect when you use our website, Android app, related learning tools, labs, CTF challenges, and accounts.

2. Information we collect

• Account data: email address (Gmail), display name, and authentication identifiers when you sign up or sign in with Google.
• Learning progress: completed lessons, labs, CTF solves, XP, streak, and leaderboard-related stats tied to your account.
• Technical data: basic device / browser information, IP address (via hosting / security providers), and logs needed to keep the service reliable and secure.
• Advertising identifiers (mobile app): on Android we may process the advertising ID (AAID) through Google AdMob to show ads to free-tier users. Premium users are not shown ads.
• Local storage: some progress may be cached on your device for offline / free-tier reliability.

3. How we use information

• Provide lessons, labs, CTF challenges, and Terminal access.
• Save XP, progress, and leaderboard ranking.
• Secure accounts and prevent abuse.
• Improve curriculum quality and platform performance.
• Show advertisements in the free Android app (via Google AdMob) so we can keep core learning free.
• Respond to support requests you send us.

4. Third-party services & Advertising Partners

We use trusted providers to run Cyberlium, including Firebase / Google Cloud (authentication, database storage, and push notifications), Cloudflare (hosting, DNS, and DDoS security), Google Sign-In, Google AdMob (for advertising in our free Android app), and Google AdSense (for advertising on our website).

These third-party advertising partners and analytics vendors may collect device identifiers, IP addresses, cookie data, and web usage metrics under Google's privacy policies to serve relevant, personalized, or non-personalized advertisements and measure their performance. We do not sell your personal information to third parties.

Learn more: Google Privacy Policy · How Google Uses Advertising Information · How AdMob Uses Data.

5. Cookies, Google AdSense & Advertising Technologies

On the website, we use cookies and local storage for session authentication, security checks, and platform preferences.

In the Android app, Google AdMob may use advertising identifiers (AAID) and Google User Messaging Platform (UMP) consent controls to deliver ads. Users in the EEA/UK can update their ad consent preferences anytime inside the mobile app via Profile → Ads privacy options.

6. Data retention

We keep account and progress data while your account is active. You may delete your account in the app (Profile → Delete account) or by contacting us. Some security logs may be retained for a limited time for abuse prevention. Ad partners may retain advertising measurement data under their own policies.

7. Your choices

• Browse many lessons without creating an account.
• Update your profile details while signed in.
• Delete your account from the Android app Profile screen, or request access, correction, or deletion by emailing us.
• Opt out of personalized ads via your device advertising settings (AdMob ads may still show as non-personalized where required).
• Where Google UMP requires it, manage ad consent choices in the Android app under Profile → Ads privacy options.

8. Children's privacy

Cyberliumis intended for learners who can create an account under applicable laws (typically 13+ / with guardian consent where required). We do not knowingly collect personal information from children under 13. The app is not directed to children and is not designed for Google Play's Designed for Families program.

9. Security

We use industry-standard protections (HTTPS, access controls, and provider security features). No online service is 100% secure; please keep your Google account protected.

10. Contact

Privacy questions: [email protected]