https://phys.org/news/2018-10-irish-authority-probing-facebook-breach.html

"The Irish Data Protection Commission (DPC) has today, 3 October 2018, commenced an investigation... into the Facebook data breach," a DPC spokesman said in a statement.

"In particular, the investigation will examine Facebook's compliance with its obligation under the General Data Protection Regulation (GDPR) to implement appropriate technical and organisational measures to ensure the security and safeguarding of the personal data it processes."