Tetrakursio has been acquired by Cyferd LTD on 10 January 2022


This website is property of BIBIAN TECH S.L., (hereinafter, “Bibian Tech” or the “Data Controller” or the “Company”), which is a private limited company (with registered number B-42945865) and registered office at Calle Carabaña, n.3, 28806, Alcalá de Henares, Madrid, Spain.

This policy describes the procedures followed by Bibian Tech in relation to the processing of personal data collected through this website (hereinafter, the “Website”).

Unless otherwise stated, this policy also applies as an information notice, pursuant to Article 13 of Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (hereinafter the “GDPR”), issued to those who interact with the Website (hereinafter the “User”).

Data Controller

The Data Controller is BIBIAN TECH S.L., with registered office at Calle Carabaña, 3, 28806, Alcalá de Henares, Madrid, Spain.

The email address provided by the company for contact in relation to this privacy policy is info@tetrakursio.com

Data Protection Officer

You can contact the Data Protection Officer appointed by the Data Controller by writing to the e-mail address info@tetrakursio.com.

Types of data processed

This Website may collect and process the following data:

· Navigation data;

· Personal data voluntarily provided by the User through the form on the website


This website uses cookies to enable the operation and provision of the services offered on this website.

Cookies are small text files that the websites you visit send to your terminal, where they are stored, and then retransmitted to the same websites the next time you visit them. Cookies allow websites to work correctly and efficiently to improve your experience by allowing the website to store information in the memory of your computer or other devices.

Depending on the entity that manages them, cookies can be first-party or third-party cookies. First-party cookies are those that are sent to the user’s terminal equipment from a computer or domain managed by the editor itself and from which the service requested by the user is provided. Third-party cookies are those that are sent to the user’s terminal equipment from a computer or domain that is not managed by the editor, but by another entity that processes the data obtained through the cookies.

This website only uses its own cookies and never third-party cookies.

This website uses technical cookies, which are those strictly necessary in whose absence the website is not able to function. They are also session cookies, as they expire once the user exits the page. Due to their technical nature, these cookies do not require the prior consent of the User for their installation and use.

The specific cookies used by this website are the following:

Cookies subgroupCookiesCookies usedLife cycle
www.tetrakursio.comWordPress_test_cookie1st PartySessions, 0 days

Our website only uses technical cookies, it will never use preference or personalisation cookies, analytics cookies or behavioural advertising cookies.

Purpose and legal basis of data processing.

Personal data collected through the Website will be processed for the purpose of handling requests for information submitted by the User.

The processing of personal data for the intended purpose does not require the consent of the User, as the processing is necessary to satisfy specific requests from the individual concerned pursuant to Article 6.1.b) GDPR.

Disclosure of data and consequences of non-compliance

The communication of personal data for the purpose of managing requests for information submitted by the user is optional and failure to comply with it will result in the Data Controller being unable to manage and process requests.

Addressees or categories of addressees

Personal data collected through this Website will not be disclosed to third party companies, except in compliance with legal or contractual obligations.

Storage period

The personal data provided will be kept as long as you do not request their deletion.

Rights of access, deletion, restriction and portability of data

Any person has the right to obtain confirmation as to whether or not Bibian Tech is processing personal data concerning them.

Likewise, interested parties have the right to access their personal data, as well as to request the rectification of inaccurate data or, where appropriate, to request its deletion when, among other reasons, the data is no longer necessary for the purposes for which it was collected.

In certain circumstances, interested parties may request the limitation of the processing of their data, in which case Bibian Tech will only keep it for the exercise or defence of claims.

In certain circumstances and for reasons related to their particular situation, interested parties may object to the processing of their data. Bibian Tech will stop processing the data, except for compelling legitimate reasons, or the exercise or defence of possible claims.

Interested parties also have the right to receive, in a structured, commonly used and machine-readable format, the personal data concerning them that they have provided to Bibian Tech, and to transmit it to another data controller.

Interested parties may exercise these rights and may revoke their consent at any time by sending an email to info@tetrakursio.com. When the interested party considers it appropriate, he or she may file a complaint with the Spanish Data Protection Agency, especially when he or she considers that we have not duly satisfied the exercise of his or her rights. Said complaint may be submitted to the aforementioned authority by means of the different options offered by the electronic headquarters of the Spanish Data Protection Agency.