WhatsApp forced users to accept the changes by making it a condition to continue using the software. Hence, users had to consent to the processing of their personal data just to open the app.
This violates Article 7 recital 32 of the GDPR, which requires that user consent must be given freely, and on a specific, informed, and unambiguous basis, without pressure, influence, or elements that introduce imbalance in the data subject’s decision.