Privacy and Cookie Policy

Last updated: 26 July 2026

1. General Information

QuantumHash is an independent technology project focused on mining equipment software, firmware, monitoring and technical support.

This Privacy Policy explains what information may be processed when users visit quanthash.io, why it may be processed and how users can exercise their privacy rights.

For privacy and personal data enquiries, contact:

Email: info@quanthash.io

By using the QuantumHash website, you acknowledge that you have read this Policy.

2. Scope of This Policy

This Policy applies to:

• quanthash.io and its language versions;
• website contact forms;
• enquiries sent to QuantumHash by email;
• technical support communications;
• the download and use of software where personal data are processed in connection with its provision or support;
• cookies and similar technologies used on the website.

This Policy does not apply to third-party websites or services that may be linked from the QuantumHash website.

3. Information That May Be Processed

The categories of information processed depend on how a user interacts with the website.

3.1. Information Provided by Users

When a user submits a contact form or sends an email, the following information may be processed:

• name or preferred form of address;
• email address;
• messenger contact details, where voluntarily provided;
• the contents of the message;
• attached files;
• other information voluntarily submitted by the user.

3.2. Technical Support Information

When requesting technical support, users may voluntarily provide:

• ASIC miner model;
• control board type;
• firmware version;
• the device’s local network IP address;
• technical specifications and operating information;
• diagnostic logs;
• screenshots;
• error information;
• settings required to install, update or troubleshoot software.

Such information is used only to the extent necessary to review the request and provide technical assistance.

Do not send the following through the website or regular email:

• device or account passwords;
• private keys;
• seed phrases;
• payment card details;
• other confidential or secret information, unless its submission has been specifically agreed as part of a technical support procedure.

3.3. Information Collected Automatically

When a user visits the website, the server and related technical systems may automatically receive:

• IP address;
• date and time of access;
• the requested page address;
• referring website or source;
• browser type and version;
• operating system;
• device type;
• browser language;
• technical logs;
• error information;
• cookie and similar technology data.

This information may be required to operate the website, maintain security, identify technical issues and understand how the website is used.

4. Payments and Financial Information

The QuantumHash website does not accept payments and does not contain integrated payment functionality.

The website does not collect:

• payment card details;
• bank account details;
• payment identifiers;
• information about financial transactions.

If payment functionality is added to the website in the future, this Policy will be updated accordingly.

5. How Information Is Used

Information may be used to:

• operate and maintain the website;
• process user enquiries;
• respond to messages;
• provide technical support;
• install, update and troubleshoot software;
• investigate technical errors;
• protect the website against attacks, spam and misuse;
• prevent unauthorised access;
• improve website content and technical performance;
• comply with applicable legal obligations;
• analyse website traffic where the required user consent has been obtained.

QuantumHash does not sell users’ personal data or provide it to third parties for their independent advertising purposes.

6. Legal Bases for Processing

Depending on the circumstances, information may be processed on the basis of:

• the user’s voluntary consent;
• the need to respond to a user’s request;
• the need to provide requested technical support;
• legitimate interests in maintaining the security and reliability of the website;
• the need to prevent misuse and technical attacks;
• compliance with applicable legal obligations.

A user may withdraw previously provided consent by contacting info@quanthash.io.

Withdrawal of consent does not affect the lawfulness of processing carried out before the consent was withdrawn.

7. Sharing Information with Service Providers

Limited access to information may be provided to technical service providers required to operate the website, including:

• the hosting provider;
• server or cloud infrastructure providers;
• email service providers;
• backup service providers;
• spam and automated request protection services;
• website analytics providers, where analytics are used;
• technical specialists maintaining the website.

Such providers receive access only to information necessary to perform the relevant functions.

Information may also be disclosed where required by applicable law, a court order or a valid request from a competent public authority.

8. Third-Party Services

The website may use third-party technical services, including:

• website analytics tools;
• spam protection tools;
• automated request protection systems;
• services used to provide fonts, images or other website resources;
• video platforms;
• social media or messenger widgets.

These services may receive technical information, including the user’s IP address, browser information and the address of the page being visited.

Information processed by third-party services is governed by their respective privacy policies.

Optional third-party services that use cookies or other tracking technologies should be activated only after the appropriate user consent has been obtained where such consent is required by applicable law.

9. International Data Processing

Some technical service providers may be located or process information outside the user’s country.

In such cases, information may be processed in accordance with the provider’s terms and applicable data protection requirements.

QuantumHash seeks to use providers that apply reasonable technical and organisational safeguards.

10. Data Retention

Information is retained only for as long as reasonably necessary for the purposes for which it was obtained.

The retention period may depend on:

• the nature of the enquiry;
• the duration of technical support;
• the need to continue correspondence;
• security requirements;
• the need to investigate errors or misuse;
• applicable legal requirements;
• the need to protect legitimate interests.

Once the purpose of processing has been fulfilled, information is deleted, anonymised or retained only to the extent that continued storage is required for technical or legal reasons.

Users may request deletion of their correspondence or submitted information by contacting info@quanthash.io.

11. Information Security

Reasonable technical and organisational measures may be used to protect information, including:

• access restrictions;
• secure connections;
• software updates;
• backups;
• protection of administrative accounts;
• filtering of spam and malicious requests;
• security event logging.

However, no method of transmitting or storing information over the internet can guarantee absolute security.

Users are also responsible for protecting their devices, passwords and other confidential information.

12. User Rights

Depending on applicable law, users may have the right to:

• obtain information about the processing of their data;
• request a copy of submitted data;
• correct inaccurate or incomplete information;
• request deletion of their data;
• restrict processing;
• object to processing;
• withdraw previously provided consent;
• receive certain information in a portable format where applicable;
• lodge a complaint with a competent data protection authority.

To exercise these rights, contact:

info@quanthash.io

To protect personal information, QuantumHash may request additional information necessary to verify the identity of the person making the request.

Some requests may be restricted or refused where the retention of information is necessary for security purposes, compliance with legal obligations or the protection of legal claims.

13. Cookies

13.1. What Are Cookies?

Cookies are small text files that a website may store on a user’s device through the browser.

Cookies may be used to:

• enable the website to function correctly;
• maintain website security;
• remember user preferences;
• remember the selected language;
• operate website forms;
• analyse website traffic;
• support integrated third-party services.

13.2. Strictly Necessary Cookies

Strictly necessary cookies are used to provide essential website functions and maintain security.

They may be required to:

• store settings selected by the user;
• operate website forms;
• protect against spam;
• store the user’s cookie choices;
• prevent malicious activity.

Disabling these cookies may prevent some website functions from working correctly.

13.3. Functional Cookies

Functional cookies may be used to remember:

• the website language;
• display preferences;
• previously selected settings;
• other user preferences.

13.4. Analytics Cookies

If website analytics tools are used, they may collect anonymised or pseudonymised statistics relating to:

• the number of visits;
• pages viewed;
• visit duration;
• referring sources;
• devices and browsers used;
• technical errors.

Analytics cookies are activated only after user consent has been obtained where such consent is required by applicable law.

13.5. Advertising Cookies

At the time this Policy is published, the QuantumHash website does not use advertising cookies for personalised advertising or the creation of user advertising profiles.

If such technologies are introduced in the future, this Policy and the relevant consent mechanism will be updated.

14. Managing Cookies

Users can:

• accept or reject optional cookies through the website notice;
• change previously selected preferences;
• delete stored cookies through browser settings;
• block some or all cookies;
• configure cookies to be deleted automatically when the browser is closed.

Blocking strictly necessary cookies may affect website functionality.

Cookie controls are normally available in the browser’s privacy, security or website data settings.

15. Third-Party Links

The QuantumHash website may contain links to third-party websites, software, social media services, messengers and other online resources.

QuantumHash does not control:

• the content of third-party resources;
• their security;
• their information collection practices;
• their use of cookies;
• their privacy policies.

Users should review the relevant third party’s terms and privacy policy before providing personal information.

16. Children’s Privacy

The QuantumHash website and materials are primarily intended for adults and professional users.

QuantumHash does not knowingly collect personal data from children.

If you believe that a minor has submitted personal information without the required permission, contact info@quanthash.io.

After receiving a substantiated request, the relevant information will be reviewed and deleted where appropriate.

17. Changes to This Policy

This Policy may be updated from time to time due to:

• changes to the website;
• the addition or removal of technical services;
• changes in data-processing practices;
• changes in applicable law.

The current version of the Policy will be published on this page.

The latest revision date is stated at the beginning of the document.

18. Contact Information

QuantumHash
Independent technology project
Website: quanthash.io
Email: info@quanthash.io

Requests may be submitted to this email address concerning:

• the processing of personal data;
• access to personal data;
• correction or deletion of personal data;
• withdrawal of consent;
• the use of cookies;
• other privacy and information security matters.