Last updated: November 13, 2026
This page explains what personal data cryptonomy.gr processes, why and for how long, and what your rights are under the General Data Protection Regulation (GDPR, Regulation (EU) 2016/679) and Greek Law 4624/2019.
1. Controller
Nikolaos Drongitis (sole proprietorship)
Smyrnis 12, 151 27 Melissia, Greece
VAT number: EL106727290
Email: info@cryptonomy.gr
2. What data we process and why
You do not need an account to read the site and we do not ask for your details.
| When | What data | Purpose | Legal basis | How long we keep it |
|---|---|---|---|---|
| Every visit | IP address, date and time, page, browser (server logs) | Running and securing the site, dealing with attacks and errors | Legitimate interest (Art. 6(1)(f) GDPR) | Up to 2 months |
| Article rating (stars) | The IP address of the last person who rated the article | So the same vote is not counted twice | Legitimate interest | Until the next vote |
| Feedback form under articles | Subject, comment, rating, the article, IP address | To read your comment, improve the site and block spam | Legitimate interest | 12 months |
| "Advertise" form or email to us | Name, email, company, website, message (and the IP for the form) | To answer your request and, if we work together, to perform the agreement | Steps before a contract and performance of a contract (Art. 6(1)(b)) | 12 months from the last contact |
| Working with an advertiser | Billing details and the related invoices | Meeting tax and accounting obligations | Legal obligation (Art. 6(1)(c)) | 5 years from the end of the financial year, or longer where the law requires |
| Cookie choices | Your choices and an identifier for them (cookies euconsent-v2, addtl_consent), IP address | To keep, and be able to prove, your consent | Legal obligation (Art. 6(1)(c) and Art. 7(1)) | Up to 13 months |
| Visitor statistics (Google Analytics) | Cookie identifiers, pages viewed, device, approximate location | To know which articles are read | Consent (Art. 6(1)(a)) | Up to 14 months |
| Ads (Google AdSense) | Advertising cookies and identifiers, IP address, page | Showing ads; personalised only if you allow it | Consent for cookies and personalisation; if you do not give it, Google shows limited ads without cookies, based on its legitimate interest | According to Google's policy |
| Telegram alerts bot (@cryptonomy_alerts_bot) | The chat identifier (chat ID) Telegram gives us, the language, the alerts you set (coin, level, kind) and the date you started. No name, username or phone number. | Sending you the alerts and the Sunday summary you asked for, and limiting abuse (messages per minute) | Providing the service you asked for (Article 6(1)(b)) | Until you send /stop or block the bot; then it is deleted at once. Messages waiting to be sent are deleted as soon as they are sent. |
| Forms (reCAPTCHA), video previews, code display tools | IP address, device and browser data | Protecting the forms from bots, showing the content | Legitimate interest | According to the policies of Google and jsDelivr |
Giving us details in the forms is optional; without them we cannot reply to you.
The banners we sell directly to advertisers only count, in total, how many times they were shown and clicked. They use no cookies and store no IP address or other details about you.
We make no automated decisions about you and we do not sell data.
3. Cookies
The site uses:
- Necessary cookies (
cryptonomy-session,XSRF-TOKEN): to keep the forms secure. They expire after 2 hours and need no consent. Alsoeuconsent-v2andaddtl_consent, which remember your cookie choices. - Statistics and advertising cookies from Google (Analytics, AdSense) and its partners: only with your consent.
On your first visit a choices window appears (InMobi Choice, under the IAB TCF framework), where you see the partners and purposes and accept or reject. You can change or withdraw your consent at any time from the "Cookie settings" link at the bottom of every page. Withdrawing does not affect what happened before.
4. Who else receives data
- Hosting provider: Operon (Greece), with servers in Germany. It hosts the site and our email and processes data only on our behalf.
- InMobi: provider of the cookie choices window.
- Telegram and Cloudflare, only if you use the alerts bot: the messages go through Telegram, which is an independent controller for your account there (Telegram's privacy policy). The bot runs on Cloudflare (Workers and a D1 database), which processes its data only on our behalf.
- Google: Analytics and AdSense (with your consent) and reCAPTCHA, which loads only when you start filling in a form, to tell people from bots. For ads, Google also acts as an independent controller: how Google uses information from sites that use its services.
- Content from third parties: video preview images come from YouTube, and some code and formula display tools from jsDelivr; they see your IP address. The video itself (youtube-nocookie.com) loads only when you press "play".
- Authorities, only when the law requires it.
Google and Cloudflare may transfer data to the United States. Both are certified under the EU-U.S. Data Privacy Framework, for which the European Commission has adopted an adequacy decision, and they also apply the Commission's standard contractual clauses.
5. Your rights
You have the right to access your data, to have it corrected or erased, to restrict processing, to data portability, and to object to processing based on legitimate interest. Where processing is based on your consent, you can withdraw it at any time.
Write to us at info@cryptonomy.gr; we reply within one month. If you believe your rights are being infringed, you can complain to the Greek Hellenic Data Protection Authority (Kifisias 1-3, 115 23 Athens) or to the authority in the EU country where you live.
6. Minors
The site is meant for adults. For children under 15, consent to cookies is given by a parent (Art. 8 GDPR, Art. 21 of Greek Law 4624/2019).
7. Security
The site works only over an encrypted connection (HTTPS), and access to the administration and to the messages we receive is limited to us and, for technical reasons, to the hosting provider.
8. Changes
If anything changes in how we process data, we will update this page and the date at the top.