Why “Anonymous Data” Might Not Be Anonymous Under GDPR
March 16, 2026
•
2 min read
Table of contents
back
to the top
Why “Anonymous Data” Might Not Be Anonymous Under GDPR
Introduction
Many companies rely on “anonymous” data but GDPR has a strict definition.
And most data isn’t truly anonymous.
1. Pseudonymous ≠ Anonymous
Data is not anonymous if it can be:
-
Re-identified
-
Linked
-
Combined
2. Common Examples That Are NOT Anonymous
-
IP addresses
-
Device IDs
-
Analytics identifiers
-
Hashed emails
3. Re-Identification Risk Matters
If re-identification is reasonably possible, GDPR applies.
4. Why This Impacts Consent
If data isn’t anonymous:
-
Consent may be required
-
Transparency is mandatory
-
Users have rights
5. Cookiepal Helps Prevent False Assumptions
Cookiepal ensures:
-
Cookies are categorized correctly
-
Tracking isn’t mislabeled as anonymous
-
Transparency stays accurate
Final Takeaway
If data can point back to a person — GDPR applies. Cookiepal helps businesses avoid dangerous assumptions about anonymity.
Sources & References
Explore further
Shopify Customer Events, Pixels and Cookie Consent
Shopify pixels still collect and send customer data, so they still need consent. Learn how app pixels, custom pixels and the Customer Privacy API should work with your CMP.
October 8, 2026
7 min
WordPress Cookie Consent: Which Plugins and Scripts Need Blocking?
A WordPress banner is not enough if plugins load trackers before consent. Learn which analytics, ad, chat and embed scripts need blocking and how to audit your full stack.
October 8, 2026
7 min
Klaviyo, Shopify and Consent: What E-Commerce Stores Need to Check
Shopify and Klaviyo can track and contact customers in ways they never agreed to. Learn how to align cookie, email and SMS consent across checkout, forms, flows and data sync.
October 1, 2026
7 min