Upon registering on this website, https://ctflearn.com, you are agreeing to be bound by these terms of service, all applicable laws and regulations, and agree that you are responsible for compliance with any applicable local laws. If you do not agree with any of these terms, you are prohibited from using or accessing this site. The materials contained in this website are protected by applicable copyright and trademark law.


The materials on CTFlearn's website are provided on an 'as is' basis. CTFlearn makes no warranties, expressed or implied, and hereby disclaims and negates all other warranties including, without limitation, implied warranties or conditions of merchantability, fitness for a particular purpose, or non-infringement of intellectual property or other violation of rights. Further, CTFlearn does not warrant or make any representations concerning the accuracy, likely results, or reliability of the use of the materials on its website or otherwise relating to such materials or on any sites linked to this site.


In no event shall CTFlearn or its suppliers be liable for any damages (including, without limitation, damages for loss of data or profit, or due to business interruption) arising out of the use or inability to use the materials on CTFlearns's website, even if CTFlearn or a CTFlearn authorized representative has been notified orally or in writing of the possibility of such damage. Because some jurisdictions do not allow limitations on implied warranties, or limitations of liability for consequential or incidental damages, these limitations may not apply to you.

Accuracy of materials

The materials appearing on CTFlearn's website could include technical, typographical, or photographic errors. CTFlearn does not warrant that any of the materials on its website are accurate, complete or current. CTFlearn may make changes to the materials contained on its website at any time without notice. However CTFlearn does not make any commitment to update the materials.


CTFlearn has not reviewed all of the sites linked to its website and is not responsible for the contents of any such linked site. The inclusion of any link does not imply endorsement by CTFlearn of the site. Use of any such linked website is at the user's own risk.


CTFlearn may revise these terms of service for its website at any time without notice. By using this website you are agreeing to be bound by the then current version of these terms of service.

Governing Law

These terms and conditions are governed by and construed in accordance with the laws of New Jersey, United States of America and you irrevocably submit to the exclusive jurisdiction of the courts in that State or location.

User Code of Conduct

CTFlearn reserves the right to discontinue service for any user that violates these terms and conditions, and the user conduct. We expect users to follow certain conditions including but not limited to: Users must only attack infrastructure/material that is explicitly marked as acceptable to be used in such a manner. Users must not distribute any malicious material to other user such as malware through the upload functionality, or through any other means. User must abstain from any unlawful, inappropriate and abusive use of the content and the services provided on this website at all times, in accordance with the existing legislation, and respect the intellectual property rights of CTFlearn.


All payments on CTFlearn are by third-party API's. We do not store any personal payment details on the site. By paying with 'PayPal.com' you agree to their terms and conditions. We reserve the right to offer a refund. All payments are final. We hold the right to close any account (without any form of refunds) at our discretion.

Privacy Policy

Your privacy is important to us. It is CTFlearn's policy to respect your privacy regarding any information we may collect from you across our website, https://ctflearn.com, and other sites we own and operate.

What Personal Data Do We Collect

We collect the following information





Any other information that is explicity provided to CTFlearn.

Usage statistics on the platform. Examples of these statistics include challenge views. Some of these statics are sent to the third party analytics service: Google Analytics

How Do We Collect Your Data

We collect the aformentioned information on the sign up and profile pages of the website. Other information such as logging and usage statistics are gathered automatically when a user accesses features of CTFlearn.

What we use your data for

We use the the above collected data to tailor the site to our users needs and to provide a better user experience based on the data we collect.

By default, users opt-in to receiving emails from CTFlearn, and this can be changed upon specific request from the users

How Do We Store Your Data

CTFlearn will take reasonable technical and organizational precautions to prevent the loss, misuse or alteration of your personal information. CTFlearn will store all the personal information you provide on its secure servers. Information relating to electronic transactions entered into via this website will be protected by encryption technology.

We only retain collected information for as long as necessary to provide you with your requested service. What data we store, we’ll protect within commercially acceptable means to prevent loss and theft, as well as unauthorised access, disclosure, copying, use or modification.

Our website (CTFlearn.com) may link to external sites that are not operated by us. Please be aware that we have no control over the content and practices of these sites, and cannot accept responsibility or liability for their respective privacy policies.

Your continued use of our website will be regarded as acceptance of our practices around privacy and personal information. If you have any questions about how we handle user data and personal information, feel free to contact us.

What Are Your Data Protection Rights

You have the following rights with respect to your data:

The right to access: you have the right to request CTFlearn for copies of your personal data. We may charge you a small fees for this service

The right to rectification: you have the right to request that CTFlearn correct any information you believe is inaccurate. you also have the right to request our comapny to complete the information you believe is incomplete

The right to erasure: you have the right to request that CTFlearn erase your personal data under certain conditions

The right to restrict processing: you have the right to request that CTFlearn restrict the processing of your personal data, under certain conditions

The right to object to processing: you have the right to object to CTFlearn processing your personal data, under certain conditions

The right to data portability: you have the right to request that CTFlearn transfer that data that we have collected to another organization, or directly to you, under certain conditions

If you make a request, we have one month to respond to you. If you would like to exercise any of these rights, please contact us at our email: [email protected]

This policy is effective as of 22 January 2021.

Cookie Policy

About cookies

This website uses cookies. By using this website and agreeing to this policy, you consent to CTFlearn's use of cookies in accordance with the terms of this policy. Cookies are files sent by web servers to web browsers, and stored by the web browsers. The information is then sent back to the server each time the browser requests a page from the server. This enables a web server to identify and track web browsers. There are two main kinds of cookies: session cookies and persistent cookies. Session cookies are deleted from your computer when you close your browser, whereas persistent cookies remain stored on your computer until deleted, or until they reach their expiry date.

Google Cookies

CTFlearn uses Google Analytics to analyse the use of this website. Google Analytics generates statistical and other information about website use by means of cookies, which are stored on users' computers. The information generated relating to our website is used to create reports about the use of the website. Google will store and use this information. Google's privacy policy is available at: https://www.google.com/privacypolicy.html.

CTFlearn publishes Carbon Ads advertisements on this website.