LinkedIn’s US operation used email addresses of 18 million non-members to target its advertising on Facebook before new data privacy rules banned the practice, Ireland’s Data Protection Commissioner said. The practice was not transparent, it said, adding that LinkedIn also used its social graph-building algorithms to construct networks for users, which now also is banned. “While we are pleased with today’s decision, this decision does not mean that all users will be protected from having their personal information misused,” said Mark Zuckerberg, Facebook’s chief executive, in a Several social networks moved data processing from Ireland to the US to protect themselves from GDPR liabilities.
LinkedIn’s US operation used email addresses of 18 million non-members to target its advertising on Facebook before new data privacy rules banned the practice, Ireland’s Data Protection Commissioner said. The practice was not transparent, it said, adding that LinkedIn also used its social graph-building algorithms to construct networks for users, which now also is banned. LinkedIn Ireland told the US division to stop so-called pre-computing and delete all related user data from before May, when the EU's GDPR rules were introduced. Several social networks moved data processing from Ireland to the US to protect themselves from GDPR liabilities.