Irish Data Protection Commission
Ireland / EU
Lead GDPR authority for most US tech firms with EU headquarters in Dublin. The most consequential privacy regulator by fine volume.
9 penalties · ≈ $4B imposed
9 penalties
Meta · Facebook · 2023
Meta's record €1.2B GDPR fine over EU-US transfers
The Irish DPC fined Meta for continuing to transfer EU users' personal data to US servers after the Schrems II ruling, exposing that data to potential US surveillance without adequate safeguards. It is the largest GDPR fine ever issued.
TikTok · 2025
TikTok fined €530M over EU-China data transfers
The Irish DPC fined TikTok for unlawfully transferring EU users' data to China without ensuring equivalent protection, and for related transparency failures.
Meta · Instagram · 2022
Instagram fined €405M over children's data
The DPC found that Instagram business accounts publicly exposed children's phone numbers and email addresses by default.
Meta · 2023
Meta fined €390M over the legal basis for ads
The DPC found that Facebook (€210M) and Instagram (€180M) relied on a terms-of-service contract, rather than valid consent, to justify personalised advertising. The decision forced a change in how Meta seeks a legal basis for ads.
TikTok · 2023
TikTok fined €345M over children's default settings
The Irish DPC found that TikTok set children's accounts to public by default and had weak age-assurance safeguards, exposing young users' content.
Microsoft · LinkedIn · 2024
LinkedIn fined €310M over behavioural advertising
The Irish DPC found that LinkedIn, owned by Microsoft, processed members' personal data for behavioural advertising without a valid legal basis and without adequate transparency.
Meta · Facebook · 2022
Meta fined €265M over data scraping
The DPC found that design failures allowed the scraping of roughly 533 million users' phone numbers and personal details, which were later leaked online.
Meta · WhatsApp · 2021
WhatsApp fined €225M over transparency
The DPC found that WhatsApp failed to properly explain to users and non-users how their data was processed and shared with other Meta companies.
Meta · Facebook · 2022
Meta fined €17M over 2018 data breaches
The DPC fined Meta over a series of twelve data breaches in 2018, finding it had failed to have appropriate technical and organisational measures in place.