Sign in Subscribe

Court of Justice of the European Union (CJEU)

This tag covers the Court of Justice of the European Union (CJEU), the EU’s highest judicial authority on questions of EU law. The CJEU interprets EU law and ensures its uniform application across Member States, including through preliminary rulings requested by national courts and decisions in actions involving EU institutions or Member States. It covers CJEU judgments shaping privacy, data protection, AI, and digital law.

Breyer: When an IP Address Becomes Personal Data

Breyer: When an IP Address Becomes Personal Data

Breyer asks when information becomes personal data even though the controller cannot identify the person on its own. The CJEU held that a dynamic IP address may be personal data where the controller has legal means reasonably likely to be used to identify the individual.

Schrems I: When EU Data Protection Crossed the Atlantic

Schrems I: When EU Data Protection Crossed the Atlantic

Schrems I invalidated the EU–U.S. Safe Harbor framework and established that protection abroad must be essentially equivalent to EU law. The CJEU also confirmed that adequacy decisions cannot prevent independent supervisory authorities from examining individual complaints.

Dennekamp II: When Public Scrutiny Justifies Naming Names

Dennekamp II: When Public Scrutiny Justifies Naming Names

After losing his first case, a journalist returned with a sharper justification for identifying MEPs in Parliament’s pension scheme. The General Court found that exposing potential conflicts of interest justified disclosure for members who had actually voted on the scheme.

Ryneš: When Home Security Cameras Reach Beyond the Household

Ryneš: When Home Security Cameras Reach Beyond the Household

Protecting your home does not automatically put your camera outside data protection law. In Ryneš, the CJEU explained why recording a public footpath exceeded the household exemption—and why the homeowner’s legitimate security interests still mattered.

Google Spain: The “Right to Be Forgotten”—While the Past Remains Online

Google Spain: The “Right to Be Forgotten”—While the Past Remains Online

Google Spain established the “right to be forgotten”—but not a right to erase history. The CJEU held that search engines process personal data and may have to delist lawful, accurate information from name-based searches when it is no longer relevant or is excessive.