We consider data privacy as a fundamental component of any business activity. Our privacy policy and practices focus on processing, sharing and storing personal information appropriately and lawfully, while ensuring confidentiality, integrity and availability.

This privacy policy applies to the main functional object of kallistros.gr which operates legally in Greece.

Kallistros.gr processes and stores personal data within the EU.

This privacy statement represents the online privacy policy applicable to the online activities of kallistros.gr. The statement explains the type of information we collect from online customers and how we use that information.

The privacy policy is under the responsibility of the kallistros.gr team, which is responsible for certifying compliance. The team is responsible for the implementation of our data protection policy, which is intrinsically linked to the privacy policy. The team monitors compliance and participates in all matters related to the protection of personal data.

Kallistros.gr must be considered as the data protection controller and will determine the purposes and means of processing personal data submitted and collected online.



The data protection policy of kallistros.gr is based on the following data protection principles:

Does the processing of personal data take place in a legal, fair and transparent manner?

The collection of personal data will only be carried out for specified, clear and legitimate purposes and further will not be processed in a way that is incompatible with those purposes.

The collection of personal data will be sufficient, relevant and limited to what is necessary in relation to the purpose for which it is processed.

Should personal data be accurate and, where necessary, up-to-date?

Every reasonable step will be taken to ensure that personal data which is inaccurate having regard to the purposes for which it is processed, is deleted or rectified without delay.

Personal data will be kept in a form that allows identification of the data subject for no longer than is necessary and only for the purposes for which the personal data is processed.

All personal data be kept confidential and stored in a manner that ensures adequate security.

Personal data will not be shared with third parties except when it is necessary to offer them services under agreement.

Data subjects shall have the right to request access to and rectification or erasure of personal data, or restriction of processing, or to object to processing as well as the right of data portability.


Personal data

Personal data means any information that may relate to an identified or non-identifiable person (the “data subject”). Personal data includes all types of information that are directly or indirectly (that is, used in conjunction with other data) attributable to the data subject, such as names, date of birth, addresses, e-mail addresses, telephone numbers, etc.


Collection of personal data

Website users who want to benefit from our services and submit information to us may be asked to provide personal data so that kallistros.gr can operate and improve our services. We collect personal data such as names, dates of birth, addresses, e-mail addresses, telephone numbers, passport or identity number, national telephone numbers, mobile phone numbers, etc.

We collect personal data for other purposes such as statistics, administration and communication, IT and security management, certification and certification systems, support systems, internal program collaboration and organizational teams and activities. We will process personal data only to the extent necessary for a specified, clear and legitimate purpose or a purpose required by law in territories where we operate.


Information You Provide Us Directly

You are not required to provide information directly to us in order to view the website. However, when you use certain features of the website, such as when you register for certain services, access certain content or features, or when you communicate directly with the website, we may ask you to provide information such as the following:

  • contact details, such as name, email address, postal address, telephone number and mobile phone number,
  • username and password,
  • information posted in community discussions and other interactive online features,
  • search queries conducted on the website and
  • correspondence you send to us.


Information collected automatically during your visit and interaction with the website

When you visit and interact with the website, certain information may be automatically collected, such as:

  • the internet protocol (IP) address of your computer,
  • the type of browser and operating system,
  • the websites you visited immediately before and after your visit to the website,
  • activities within community discussions,
  • websites and advertisements you see and links you click on within the website,
  • the speed of your connection and information about the software programs installed on your computer;
  • aggregated data on email click-through and user video viewing rates,
  • basic server connection information and
  • information collected through HTML cookies, Flash cookies, web beacons and other similar technologies.


Information we collect from other sources

We may access information about you from third party sources and platforms (such as social networking sites, databases, online marketing and advertising targeting companies), which include:

if you access third-party social networking services (such as Facebook Connect or Twitter) through the website, your username and login lists for those services;

  • demographic data, such as your age group, gender and interests,
  • ad interactions and viewing data such as ad click-through rates and information about how many times you have seen a particular ad and
  • unique identifiers, including mobile device identification numbers, which can locate the physical location of such devices in accordance with applicable law.

Please note that the website may combine information we collect directly with information we receive from third-party sources.


Use of personal data

We will use personal data for the purpose for which it is collected, and we will only keep the data for as long as is necessary for that purpose. We may retain visitor information for as long as the visitor’s account is active or as necessary to provide services, to comply with our legal obligations or for any of the purposes listed above.

Access to personal data is strictly limited to the kallistros.gr team which has the correct certification and a clear need for the data.


Use of Cookies

The website of kallistros.gr and its partners uses cookies or similar technologies to ensure an excellent user experience and to analyze trends, to manage the website, to track user movements throughout the website, and to gather demographic information relevant to our user base as a whole. Cookies are small text files placed on the user’s device to track usage patterns and registration preferences. Our cookies do not contain information that can identify individuals.

We collect certain information automatically through the use of cookies and tracking technologies such as Internet Protocol (IP) addresses, browser type, Internet Service Provider (ISP), referring/exit pages, files displayed on our page (e.g. HTML pages, graphics), operating systems, date/time stamp, and/or browsing data to analyze overall trends and to administer the page.

Website users can control the use of cookies at the private browser level, but if users choose to disable cookies, this may limit the use of certain features or functions on our website or our services.


Sharing of personal data

Personal data should not be shared with third parties except in circumstances where such sharing is necessary to provide our services. We occasionally sign with other companies and corporate partners who work on our behalf such as technology companies to manage and distribute systems and updates in ways that enhance our products and services.

In these cases we will share with them only the necessary data for this purpose. Service providers will only be allowed to obtain the personal data they need to deliver their service. We will not disclose personal data to third parties for the purpose of enabling them to market their own products and services to our customers. If our users do not want us to share information with these companies, please contact the privacy policy department by e-mail: info@kallistros.gr.

In certain circumstances, kallistros.gr may be required to disclose personal information in response to lawful requests from supervisors to fulfill GDPR requirements. We may also release personal information if required by law, as well as to comply with any legal process, when we believe in good faith that release is necessary to protect our rights, protect the safety of our customers or the safety of others, investigate fraud, or respond to a government request.


Security process of personal data

We will process personal data securely, implement and maintain appropriate technical and organizational measures to protect personal data against accidental or unlawful destruction or accidental loss, alteration, unauthorized disclosure or access, particularly where the processing involves the transfer of data over a network, and against all other unlawful forms of processing. Questions regarding the security of personal data can be addressed to the privacy policy department by e-mail: info@kallistros.gr


Access to and correction or deletion of personal data

Visitors/customers have the right to access, correct or request erasure or restriction of processing of any information we have collected, at any time. To help us keep personal data up to date, we advise users to inform us of any changes or discrepancies.

To examine and/or edit personal data, or to receive information about how long kallistros.gr intends to keep personal data or for other questions related to the access of personal data, or if you want to submit a request, so that you provide information about whether we retain or process on behalf of third parties any of your personal information, please contact the personal data department e-mail: info@kallistros.gr.


Emails/Newsletters/Marketing Campaigns

Kallistros.gr is allowed, upon consent, to send e-mails/newsletters/marketing campaigns to visitors or customers. The specific form of consent must be freely given, informed and clear. These prerequisites are met when visitors or customers have opted in to receive e-mails/newsletters/marketing campaigns (active opt-ins).

Visitors or customers will always have the right to object, upon request and at no cost, to the processing of personal data relating to them for the purposes of direct marketing activities without having to provide specific justification. Visitors or customers can do this by using the “Unsubscribe” link which they will find in the e-mails they receive from us or by contacting us at the e-mail address: info@kallistros.gr.

Once a visitor/customer has objected, the personal data of that visitor/customer will no longer be processed for direct marketing.

E-mails/newsletters/marketing campaigns contain information that we believe may be of interest to our visitors/customers such as the latest news about our products and services.



Kallistros.gr is responsible and must be able to prove at any given time, compliance with the GDPR as well as with our principles defined here. Kallistros.gr will maintain records of processed activities under its responsibility containing the information required by GDPR and where applicable and will make the records available to supervisors upon request.

The privacy statement is under the responsibility of the team at kallistros.gr. Any question regarding this policy can be addressed to the e-mail address: info@kallistros.gr.



Visitors have the right to submit a complaint regarding the processing of their personal data. All inquiries and complaints will be dealt with in a timely manner by the privacy policy compliance department in accordance with internal procedures.

In the unlikely event that customers have been harmed due to a violation of their rights by the data protection policy and kallistros.gr has not dealt with the complaint in an adequate manner, visitors can formally complain to the supervisors.

Complaints can be submitted to the e-mail address: info@kallistros.gr


Changes to this policy

This policy may be updated from time to time, e.g. due to amendments to the relevant legislation or changes in the structure of kallistros.gr. In case of changes, visitors will be informed via e-mail or through a warning on the website about them. We encourage all of our users to periodically check this page for the latest information on our privacy practices.


Contact us  

Phone: +30 2610 274229

E-mail: info@kallistros.gr