Google has been accused of using hidden webpages that are assigned to users to provide more information to advertisers about their every move online.
The allegation has been added to a complaint lodged with the Irish Data Protection Commission.
The tech firm insists it acts in accordance with EU privacy laws.
It comes a day after Google was fined $170m (£138m) by a US watchdog for illegally capturing data from children and targeting them with adverts.
What is Google being accused of?
Privacy-focused web browser Brave has published details of an investigation it conducted into a Google ad system known as Authorised Buyers ... Read even more