SigmaNet network Terms of Use

Riga, 25 May 2018

The terms put forth in this document explain what actions are prohibited to the users of the computer network and systems of the Academic Network Laboratory (hereinafter, SigmaNet) of the Institute of Mathematics and Computer Science of the University of Latvia. SigmaNet reserves the right to amend these terms at any time by publishing them on

1. The SigmaNet computer network may be used for lawful purposes only. It is prohibited to transfer, distribute or store information that violates any laws or regulations valid in the Republic of Latvia.

2. It is prohibited to compromise the security of any third-party systems and networks and to disrupt normal work in any other way. Examples of compromising the security of a system or network include, but are not limited to, the following:

3. Users of the GÉANT network can only use it for academic purposes.

4. Sending unsolicited email messages (SPAM) is explicitly prohibited.

5. Any violation or attempted violation of the Terms of Use of the SigmaNet computer network committed by a client of SigmaNet or by an end-user of the client will be considered as a violation committed by this client. It is the client’s responsibility to react to any violations of these terms, reported by SigmaNet, within 24 hours.

6. In the event of regular, continuous or severe violations, SigmaNet reserves the right to limit the client’s access to SigmaNet and the global network until the violation has been fully rectified. In case of suspicion of a criminal offence, SigmaNet will cooperate with law enforcement agencies.

7. Please address any complaints about unacceptable use of the SigmaNet computer network to


SigmaNet Privacy Policy

Riga, 15 May 2018

Data processing controller

1. Data centre services are provided by the Academic Network Laboratory (hereinafter, SigmaNet) of the Institute of Mathematics and Computer Science of the University of Latvia. Personal data processing controller:

Name Institute of Mathematics and Computer Science of the University of Latvia
Academic institution registration number 381013
Tax identification number 90002111761
Address Raiņa bulvāris 29, Riga, LV-1459, Latvia
Telephone number +371 67211241
Fax +371 67225072

Data protection officer

2. SigmaNet Data Protection Officer: telephone number +371 67211241, email

Purpose and legal basis of data processing

Performance of a contract pursuant to Article 6(1)(b) of the General Data Protection Regulation (GDPR).

3. SigmaNet processes your data to enter into a contract for data centre services and to ensure the fulfilment of contractual obligations. It is not possible to enter into a contract without processing personal data, because, pursuant to Section 1404 of the Civil Law of the Republic of Latvia, the parties of each lawful transaction must be taken into account.

4. Cookies of the SigmaNet website are processed to ensure email services through a browser.

Legal obligation pursuant to Article 6(1)(c) of the General Data Protection Regulation (GDPR).

5. SigmaNet may process your data if it is necessary to comply with a legal obligation applicable to SigmaNet, such as a request to disclose your personal data to national regulatory authorities in accordance with the laws and regulations.

6. When you use the SigmaNet website email services, SigmaNet registers your requests by using audit trails to ensure proper functionality of the website, service security, and to investigate any possible IT security incidents.

Data security

7. SigmaNet has implemented internal procedures, technological solutions and control mechanisms to ensure the security, integrity and confidentiality of personal data, as well as to restrict unauthorised access to personal data.

8. SigmaNet provides multilevel data protection, including:

Possible data receivers

9. SigmaNet has the right to disclose personal data:

10. A natural person has the right to request information from SigmaNet about third parties that have received information about this natural person unless specified otherwise in laws and regulations of the Republic of Latvia.

Access to your personal data and data portability

11. You can rectify your data by sending an email to, in person at the SigmaNet Client Service Centre, or by sending a request to the postal address: Raiņa bulvāris 29, Riga, LV-1459, Latvia. SigmaNet releases data only after the requester has been identified.

12. You have the right to receive your personal data from SigmaNet in machine readable format.

Data rectification, erasure or restriction of processing

13. It is your responsibility to provide true, valid and complete data at the time of entering into a contract and during the performance of the contract.

14. In case of data changes, you are obliged to immediately update the data by notifying SigmaNet of the necessary amendments.

15. If SigmaNet detects that the provided data is false, out-of-date or incomplete, you will receive a request to rectify the data within a given time frame. Should you fail to reply and update the data, or it is found that the data are false, SigmaNet has the right to terminate the contract for data centre services.

16. If you object to the processing of personal data, SigmaNet will terminate the contract, because personal data processing is necessary to enter into a contract and fulfil its obligations.

Data storage period

17. The controller is a derived public person bound by the laws and regulations of the national documentary heritage. Therefore, personal data are stored in accordance with the laws and regulations of the Republic of Latvia, including the Archives Law.

18. Audit trails are stored for at least one year, but no longer than two years after a record has been created.

19. Cookies of the SigmaNet website email service are deleted at the end of a session or after a 30 minute idle time.

Lodging complaints

20. A natural person has the right to lodge a complaint with a supervisory authority about a possible breach of personal data protection.

Policy amendments

21. The SigmaNet Privacy Policy may be amended when necessary. SigmaNet will publish all amendments to the SigmaNet Privacy Policy on, with a special announcement regarding the changes.

Riga, 25 May 2018

Cookie types and intended use

1. Cookies collect information on how you use websites and Cookies function as a memory of a specific website, allowing it to remember your computer the next time you visit the website. Cookies can also remember your settings and improve the overall user experience.

2. SigmaNet uses the Google Analytics web analysis service (a Google Inc. product) on websites and, which requires your approval. Google Analytics helps analyse and understand user activities on a website, allowing SigmaNet to make the website more user-friendly and improve its functionality. For this purpose, we gather standard information (visit time, duration, IP address) and anonymous information about your activities on the website.

3. We use both session cookies (disappear when you close your browser) and persistent cookies (stored longer, for a specific period of time). Cookies used on the SigmaNet websites and can be divided into three categories:

4. To avoid requesting your consent each time you visit the site, for your convenience, SigmaNet also uses cookies to record whether or not you have accepted the use of cookies on websites and

Use and storage of cookie data

5. In accordance with the Google Inc. Terms of Service and Google Analytics Terms of Service, Google will use this information to assess how you use the website and prepare reports on user activities on the website for the needs of SigmaNet. The data gathered by Google Analytics are stored for the minimum possible period of time: 14 months.

6. SigmaNet will not use and will prohibit any third party to use cookies with the purpose of finding or gathering any identifiable personal data on the visitors of websites and

7. Google Analytics stores the IP address the website is accessed from to provide SigmaNet with statistical geolocation data about visitors of the website. SigmaNet anonymises IP addresses by deleting the last octet of an IPv4 address and changing the last 80 bits of an IPv6 address to zero in the memory.

8. Data gathered by Google Analytics will be sent to and stored on Google Inc. servers beyond the borders of the Republic of Latvia. Data can be processed on servers located outside of Latvia or the European Union.

Opting out of cookies

9. You can also opt out of Google Analytics cookies by downloading and installing the Google Analytics Opt-out Browser Add-on for Google Chrome or the Google Analytics blocker for Mozilla Firefox. This add-on communicates with Google Analytics JavaScript (ga.js) and indicates that the data about a specific visit of the website may not be sent to Google Analytics. For information about the possibilities of blocking data transfers to Google Analytics in other browsers, please see the settings of the respective browsers.

10. You can also change your browser settings to opt out of new cookies, turn off existing ones or require the browser to notify you before sending new cookies to your device. For more information, see:

Policy amendments

11. The SigmaNet Cookie Policy may be amended when necessary. SigmaNet will publish all amendments to the SigmaNet Cookie Policy on, with a special announcement regarding the changes.

SigmaNet izmanto divu veidu sīkdatnes:
  1. Sīkdatnes, kas nodrošina Jūsu pieprasīto pakalpojumu darbību.
  2. Sīkdatnes, kas SigmaNet sniedz informāciju par interneta vietnes apmeklējumu.
Lai uzzinātu vairāk, aicinām iepazīties SigmaNet sīkdatņu politiku.