Threat to privacy and national security. – Figure: Pixabay; Fog: Vecteezy; Montage: netzpolitik.orgOur latest investigation has shaken up Brussels by revealing that commercial datasets containing 278 million locations can be used to spy on the EU and NATO. The European Commission has expressed its concern, Members of Parliament are calling for action. One thing is clear: ad tracking and data brokers threaten Europe's security.