The Belgian Court of Appeal rules that the Transparency & Consent Framework, used by Google, Microsoft, Amazon, X, and the ad industry, is illegal across Europe
Landmark court decision against “TCF” consent pop ups on 80% of the internet — Google, Microsoft, Amazon, X …
Irish Council for Civil LibertiesJohnny Ryan
Context & Ripple Effects
This ruling extends a long-running challenge to the ad industry’s shared consent mechanism. EU case law had already established that non-essential tracking requires active user consent, while a data-protection finding had concluded that IAB Europe’s framework failed GDPR standards.
The legal pressure intensified when the EU’s highest court held that IAB Europe’s advertising model processes personal data. The appeal ruling now turns that dispute into a Europe-wide problem for the framework’s platform and publisher users.
First-order effects
Google, Microsoft, Amazon, X and other TCF users must reassess whether they can continue relying on its consent signals for European advertising and tracking operations.
Publishers and ad-tech intermediaries using the framework face immediate compliance and implementation risk, because the common mechanism intended to document consent has been ruled unlawful.
Second-order effects
Ad buyers, publishers and vendors may need to replace or narrow TCF-based data flows, creating operational pressure on campaign targeting, measurement and consent-management tooling.
Large platforms with their own logged-in audiences may be better positioned than smaller publishers and independent ad-tech firms to absorb a shift away from a shared consent standard.
Third-order effects
If the ruling holds, European digital advertising may move from an industry-wide consent layer toward more fragmented, service-specific permission systems, raising compliance costs and reducing interoperability.
The case strengthens the broader GDPR enforcement pattern in which courts scrutinize the technical infrastructure behind data collection, not just the wording of cookie banners.
The trend: Europe is shifting privacy enforcement from individual consent interfaces to the underlying systems that standardize and transmit advertising data.
Oh noooo, the industry that harvests and sells personal identifiable information to track people across the internet just got another hit. We can hardly contain our immeasurable sadness!! 🤪 (Seriously though, let's be better and let's respect our users' need for privacy) www.ic…
I remember circa 2009 in a workshop I co-taught pointing out how tracking was going on across websites, rather than just within a website (which I already had ethical concerns about) and it has been so weird to see people just go along with it all this time. — Hopefully this EU…
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Those annoying “consent” cookie pop ups that Big Tech has been using as part of their malicious compliance efforts to convince you that data protection law in the EU is a nuisance? — Turns out they're illegal. — https://www.iccl.ie/... #TCF #consent #data #privacy #EU #GDPR …
Now unlawful in Europe! 👏 “#RTB tracks what Internet users look at and where they go in the real world. It then continuously broadcasts this data to a host of companies, enabling them to keep dossiers on every Internet user.” https://www.iccl.ie/...