Daniel Atienza López

Privacy Policy

Last updated: February 2026
Effective from: February 2026
Jurisdiction: England and Wales

Overview

This Privacy Policy applies to datienzalopez.com and explains how we collect, use, store, and protect your information. Daniel Atienza López (“we,” “us,” “our,” or “I”) operates this website.

We respect your privacy. This policy is written in plain language so you understand exactly what happens to your data.

1. Who We Are

We are responsible for deciding how and why we collect and use your personal data. If you have questions about this policy, you can contact us at: https://www.datienzalopez.com/contact .

2. What Data We Collect and Why

2.1 When You Visit Our Website

What we collect:

  • Basic server logs for security and performance
  • Invisible captcha verification data (to prevent spam and automated abuse)
  • Optional functional cookies needed for the site to work (e.g., language selection, session/login, security, and form protection)

Why we collect it:

  • To keep the website secure and reliable
  • To deliver core functionality (like login or language preference)
  • To prevent spam submissions and automated abuse

Invisible captcha:
We use invisible captcha technology on forms and sign-up pages to verify that you are human and not a bot. This technology:

  • Does not show a visible puzzle you need to solve
  • Works silently in the background to analyze your interaction patterns
  • Collects minimal behavioral data (mouse movements, keystroke patterns, time spent on page)
  • Does not identify you individually
  • Is processed immediately and not retained for analysis

How long we keep it:
Invisible captcha verification data is processed in real-time and not stored long-term. Metadata may be retained briefly (24-48 hours) for security logs only.

Important: This data is anonymised and aggregated. We cannot and do not identify you as an individual from this data. We only use it to verify you are human and prevent spam.

Lawful basis: We process this data based on our legitimate interest in preventing spam, abuse, and protecting our website from unauthorized automated access.

2.2 When You Subscribe to “One Email a Day” Newsletter

What we collect at signup:

  • Your email address
  • Your IP address
  • Your country (automatically determined from your IP address)
  • Your user agent (information about your browser and device)
  • The date and time you subscribed (timestamp)

Why we collect this information:

DataPurposeLawful BasisEmail addressTo send you the newsletterYour explicit consentIP addressProof that you gave consent to receive the newsletterYour explicit consentCountryTo verify subscription location and prevent fraudLegitimate interestUser agentRecord of the device/browser used at subscriptionYour explicit consentTimestampEvidence of when you consentedYour explicit consent

Consent:
By subscribing to “One Email a Day,” you are explicitly consenting to receive emails from us. Your subscription data (IP address, country, user agent, timestamp) serves as a record that you agreed to this.

How long we keep your data:
We keep your email address and subscription data only while you are subscribed. The moment you unsubscribe, we delete all your data from our systems immediately—including your email address, IP address, country information, user agent, and timestamp.

There are no exceptions. Once you unsubscribe, there is no data left on our systems.

2.3 Content of “One Email a Day” Newsletter

What you’ll receive:

  • Ideas and insights about cloud architecture, AI, and technology strategy
  • Tips and practical advice
  • Updates on what I’m currently working on
  • Occasional announcements or news relevant to the topics covered

Frequency: Approximately one email per day, though this may vary.

Email tracking (aggregated only):
Our newsletter emails may contain tracking pixels. These pixels help us understand:

  • Whether emails are being opened (open rate)
  • Which links people click on
  • General engagement patterns

Important: All tracking data is aggregated only. We do not track individual subscribers. We see patterns like “60% of recipients opened this email” or “the newsletter section was clicked 150 times”—never which specific person opened an email or clicked a link. This data helps us improve newsletter content and performance.

3. Who We Share Your Data With

3.1 Email Provider

Your email address is shared with our email service provider solely to deliver newsletters to you. Our email provider:

  • Is legally bound to process your data only as we instruct
  • Does not share your email address with anyone else
  • Does not use your email for their own marketing purposes
  • Maintains appropriate security measures

The email provider’s datacenter and service is located in Europe. Your data is processed within the European Union, ensuring it remains subject to equivalent data protection standards.

3.2 Third Parties

We do not share your email address with any other third parties. Your email is never sold, rented, or given to marketers, analytics companies, or any other business.

Your aggregated newsletter engagement data (e.g., “60% open rate”) is not shared with third parties.

3.3 Legal Requirements

We may disclose your data if required by law—for example, if a court issues a legal order. This is rare, and we would notify you of such disclosure where legally permitted.

4. Cookies and Tracking Technologies

4.1 Current Cookie Policy

We only use essential cookies required for the website to work. We do not use analytics or advertising cookies.

Examples of essential cookies we may use:

  • Language or display preference
  • Session and login security
  • Form protection (captcha/anti-bot)
  • Basic security and abuse prevention

4.2 Third-Party Analytics

We do not use third-party analytics tools such as Google Analytics, Facebook Pixel, or similar tracking technologies.

5. Your Rights

Under UK GDPR, you have the following rights regarding your personal data:

5.1 Right of Access

You can ask us what personal data we hold about you. We will provide this within 90 days. Contact us using the form at: https://www.datienzalopez.com/contact .

5.2 Right to Rectification

If your data is inaccurate (e.g., you gave us the wrong email address), you can ask us to correct it.

5.3 Right to Erasure (“Right to Be Forgotten”)

You can ask us to delete your data. For newsletter subscribers, simply unsubscribe (see below), and all your data is permanently deleted.

5.4 Right to Withdraw Consent

You can withdraw your consent to receive our newsletter at any time. You can do this by unsubscribing via the link in any newsletter email or using our contact form at https://www.datienzalopez.com/contact .

5.5 Right to Object

You can object to us using your data for certain purposes, though given we only use your data to send the newsletter, unsubscribing is the simplest way to exercise this right.

5.6 Right to Data Portability

You can request a copy of your data in a structured, commonly used format. However, since we only hold your email address for the newsletter, this is simply your email address.

6. How to Unsubscribe from the “Newsletter”

You can unsubscribe in two ways:

Option 1: Click the Unsubscribe Link

Every email includes an unsubscribe link at the bottom. Click it, and you’ll be removed from our list immediately.

Option 2: Contact Us

Write a message using the form https://www.datienzalopez.com/contact mentioning that you would like to unsubscribe from the newsletter.

What happens when you unsubscribe:

  • You stop receiving newsletters immediately
  • All your data (email, IP address, country, user agent, timestamp) is permanently deleted from our systems
  • You cannot be re-added to our list without giving consent again

We process unsubscribe requests within 24 hours.

7. Data Security

We take reasonable steps to protect your data from unauthorized access, loss, or misuse:

  • We use secure connections (HTTPS) when you interact with our website
  • We limit access to your data to only those who need it
  • We regularly review our security practices

However, no security system is perfect. If you believe your data has been compromised, contact us immediately at https://www.datienzalopez.com/contact .

8. Data Retention Summary

Data TypeHow LongWhat Triggers DeletionEssential website cookiesVaries by cookieAutomatic expiry or manual deletionNewsletter email addressUntil you unsubscribeYou unsubscribeSubscription proof (IP, country, user agent, timestamp)Until you unsubscribeYou unsubscribeNewsletter engagement data (aggregated)IndefinitelyWe keep aggregated patterns to improve content

9. International Data Transfers

Our email service provider’s datacenter and service is located in Europe. Since your data is processed within the European Union, it remains subject to equivalent data protection standards without requiring Standard Contractual Clauses for transfer.

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. If we make material changes (like changing how we use your data), we will:

  • Update the “Last updated” date at the top of this policy
  • Notify newsletter subscribers via email of significant changes

Your continued use of the website or subscription to the newsletter after changes means you accept the updated policy.

11. Contact Us

If you have questions about this Privacy Policy or how we handle your data:

Contact form: https://www.datienzalopez.com/contact .

12. Complaint to the Information Commissioner’s Office

If you believe we have mishandled your data or breached UK GDPR, you can file a complaint with the Information Commissioner’s Office (ICO):

ICO Contact:
Website: ico.org.uk
Phone: 0303 123 1113
Address: Information Commissioner’s Office, Wycliffe House, Water Lane, Wilmslow, Cheshire, SK9 5AF

You have the right to lodge a complaint with the ICO at any time.

Summary: What You Should Know

✓ We don’t track you as an individual on our website
✓ We only use essential cookies and no analytics or advertising cookies
✓ We use invisible captcha to prevent spam (no personal data retained)
✓ We only collect your email address to send our newsletter—nothing else
✓ Your email is never shared with third parties
✓ We use pixel tracking in emails, but only to see patterns, not to track you individually
✓ When you unsubscribe, all your data is deleted immediately
✓ You can unsubscribe anytime via email or a link in every newsletter
✓ Your data is protected by UK GDPR
✓ Your email data is stored in Europe

That’s it. We believe privacy should be simple and transparent.