IAB Europe Says There’s No Need to Delete Data Collected Through the TCF

Tim Cross 07 February, 2022 

Last week Belgium’s data protection authority ruled that the Transparency and Consent Framework (TCF), a consent framework designed by IAB Europe to help the ad industry comply with the EU’s general data protection regulation (GDPR), actually infringes the GDPR.

The full implications of the ruling are now being debated by IAB Europe and the privacy advocates who oppose them. Immediately after the ruling was released, the Irish Council for Civil Liberties said that all companies which collected personal data using the TCF would now have to delete that data. Johnny Ryan, senior fellow at the ICCL, added that the ruling mandates significant reform for how real-time bidding operates.

IAB Europe has now had its say in an FAQ posted in its website. The trade group argues that data collected by the TCF doesn’t need to be deleted, and that the ruling doesn’t spell the end for its OpenRTB protocol.

IAB Europe’s FAQ is published verbatim below. The full FAQ can also be read here on IAB Europe’s blog.

Are TCF CMP consent pop-ups illegal?

No. There is nothing in the APD’s decision that even remotely suggests that consent prompts are, as such, illegal or that they should not be employed by the digital advertising ecosystem to comply with legal requirements under the EU’s data protection framework. If anything, the APD appears to require the disclosure of additional information in consent popups. This is because the APD considers user preference signals (i.e, TC Strings under TCF) as personal data that requires the establishment of a legal basis under the GDPR and also, that users cannot reasonably expect that their preferences are saved. As a result, disclosing information about such additional personal data collection and processing (in consent prompts) could be the only way to establish transparency about and user control over the creation, storage and processing of TC Strings. See the question “What are TC Strings?” for additional background information.

Should all data collected via the TCF be deleted?

No!

First, there remains the question of whether the TCF truly involves the processing of “personal data” – see the question “Why are TC Strings considered personal data by the APD ?” below.

Next, the APD says explicitly in its decision that it cannot impose the removal of all TC Strings generated until now on IAB Europe. Rather, the APD requires IAB Europe to ensure the deletion of personal data collected by means of a TC String in the context of the “global scope”, a specific mechanism that was deprecated in June 2021. This mechanism helped set consent preferences in a broader, CMP-independent manner, but it is no longer in use – see the question “What is the global-scope ?” below.

The APD’s decision only concerns IAB Europe, not any vendor, publishers or CMPs, but it does hint at the possibility of an order for a given publisher or CMP to delete TC Strings if they contain “personal data that has been collected in breach of Articles 5 and 6 GDPR”. This is nothing new: if personal data is collected in breach of the GDPR, it cannot be processed. Yet no GDPR breach has been established for any vendor, publisher or CMP. For more input on what the APD’s decision actually means for you as a TCF participant – see the question “Are TCF participants at risk now towards their local Data Protection Authority?” below.

Will the legitimate interest legal basis be removed from TCF?

The APD solely assessed and concluded that reliance on legitimate interest was inadequate for purposes that entail targeted advertising or profiling of users (excluding non-marketing related purposes such as audience and performance measurement). It is therefore unclear if the requirement for IAB Europe to prohibit the reliance on legitimate interests as a legal ground for the processing of personal data by TCF participants shall apply to all TCF purposes or solely to purposes related to personalised advertising and profiling. Because of the lack of clarity of the APD’s position on this point, IAB Europe will look at this issue in its discussions with the APD – as well as in any legal challenge, if applicable (see question “Will IAB Europe appeal to the Market Court?”).

Why are TC Strings considered personal data by the APD?

Although the APD considers it is not established that the TC String in itself allows for direct identification of the user due to the limited metadata and values it contains, it holds that the possibility of combining TC Strings and the IP address by CMPs means it is ultimately information about an identifiable user and therefore personal data. This is based on the idea that CMPs could via an Internet Service Provider link an IP address to an individual, a reasoning that is based on legal decisions in a very different context. The APD also suggests that identification is possible by linking the TC String to other data that can be used by TCF participants.

What legal basis could be used for the processing of TC Strings?

Although the APD appears to consider neither consent nor performance of a contract are available legal basis for the processing of TC String by IAB Europe, it seems legitimate interest could constitute an adequate legal basis : the APD considers that capturing users’ approval and preferences to ensure and demonstrate users have validly consented to or not objected to advertising purposes may be considered a legitimate interest, and that the information processed in a TC String is limited to data strictly necessary to achieve the intended purpose. However, it notes that users must be informed about their preferences being stored in the form of a TC String, and provided with a way to exercise the right to object to such storage/processing.

Will IAB Europe appeal to the Market Court?

The decision may be appealed before the Belgian Market Court within a period of thirty days from its notification (i.e. before March 4th 2022). IAB Europe can also ask the Market Court for the suspension of enforcement until the end of the appeal process (in other words, a request to ensure that the APD decision is put on hold entirely until a decision on appeal is handed down). We are still assessing options with respect to a legal challenge.

Will TCF be made into a code of conduct?

IAB Europe has aspired to make the TCF into a GDPR Code of Conduct since the very beginning. It could very well be that adopting the actions recommended by the APD in this case would result in a Framework that is better aligned with the expectations of the APD, which could qualify it as a potential candidate for a Code, with the APD as the leading supervisory authority.

Is OpenRTB illegal?

The scope of the decision is related to IAB Europe’s controllership over TC Strings, and the sanction pertains solely to this controllership. The functioning of the OpenRTB system has been assessed as part of the APD’s analysis of the TCF and its interaction with the former, but the ruling does not directly address the legality of the OpenRTB standard.

What are the consequences for IAB Europe to be a Data controller of the TC String?

Based on guidance from other DPAs up to now and the fact that IAB Europe does not in any way process, own, or decide on the use of specific TC Strings (nor is it involved in any “coordination” of the use of TC Strings), as well as relevant case law and its own interpretation of the GDPR, IAB Europe has not considered itself to be a data controller in the context of the TCF. In its decision, though, the APD takes a different position and says that IAB Europe is a controller regarding the processing of personal data in the form of TC Strings. Yet controllers are under additional obligations according to the GDPR.

The APD decision requires IAB Europe to work with the APD to ensure that these obligations are met going forward : this includes notably establishing a legal basis for the TC String, ensuring effective technical and organisational monitoring measures in order to guarantee the integrity and confidentiality of the TC String, carrying out a data protection impact assessment (DPIA) with regard to the processing activities under the TCF and appointing a Data Protection Officer.

Are TCF participants at risk now towards their local Data Protection Authority?

In principle, no – first for timing and procedural reasons, second for technical and legal reasons.

On timing and procedure, the APD decision (i) can be appealed (see question “Will IAB Europe appeal to the Market Court?”) and (ii) includes a grace period, in the form of first a period of two months to present a plan to the APD to take into account the APD’s conclusions and in total six months to implement them. Any investigation or complaint before the end of these follow-up procedures (appeal if relevant, and APD collaboration) could be challenged as preventing the proper course of the justice system. This notably stems from the fact that many other local Data Protection Authorities have given input to the APD before it handed down its decision, as well as general principles regarding the rights of defence.

Next, from a more technical and legal perspective, the APD decision itself does not conclude that the use of TC Strings or the TCF more broadly is illegal. While it does hint in its decision that an order for a given publisher or CMP to delete TC Strings if they contain “personal data that has been collected in breach of Articles 5 and 6 GDPR”, it never concludes that vendors publishers or CMPs automatically collect personal data in breach of the GDPR. In other words, the APD decision does not make it much easier for local Data Protection Authorities to attack specific vendors, publishers or CMPs.

Will the action plan and its execution be supervised only by the APD or by other concerned authorities as well?

The APD expects IAB Europe to submit an action plan within two months from the publication of the decision to the Litigation Chamber of the Belgian Data Protection Authority. Once the action plan is validated by the Belgian Data Protection Authority, the compliance measures should be completed within a maximum period of six months. This process will involve proposed changes to the TCF that would need to be agreed by the existing TCF instances (the Steering Group, the Policy working group as well as the Framework Signal working
group).

Does IAB Europe share personal data with banks and insurance companies?

This may seem like an odd question to feature, but in a recent interview, the chairman of the APD made the astonishing claim that “data at IAB is shared with banks and insurance companies”. This caught even IAB Europe by surprise, as it is unclear on which basis the chairman was making this claim, and in any event the APD’s decision does not even come close to making any allegations in this respect. IAB Europe is a trade association for the digital advertising industry that develops policy guidance and compliance standards (such as the TCF). IAB Europe does not process or transfer any personal data beyond what is required for its trade association activities (i.e., data of its employees, data of member representatives, data related to the operation of its website). It certainly does not share any data whatsoever with either banks nor insurance companies beyond what is legally required for its employees and membership fees.

2022-02-07T13:05:57+01:00

About the Author:

Tim Cross is Assistant Editor at VideoWeek.
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