However, the latter was then replaced by the EU General Data Protection Regulation (GDPR), which is directly applicable upon Members States such as Ireland.

The DPC's main priority, if a complaint is upheld, is that the data controller complies with the law and puts right the matter concerned.

In 2018, Martin Meany, editor of Goosed.ie, filed a complaint to the DPC against the Diocese of Ossory stating he wished for his baptismal records to be deleted.

[7][8] In 2021, NOYB (None Of Your Business), an Austrian NGO founded by Max Schrems, filed a complaint against the DPC for corruption under Austrian law after the DPC demanded that the group sign a non-disclosure agreement in order to continue with their long-running complaint against Facebook.

[12] European Data Protection Board determined that DPC has failed to perform its enforcement responsibility with "due diligence".

[3] All breaches of the Privacy and Electronic Communications (EC Directive) Regulations 2003 for which the Office of the Data Protection Commissioner has responsibility are offences.