Mark Zuckberg’s Meta is to go ahead with controversial plans to use millions of UK Facebook and Instagram posts to train its artificial intelligence (AI) technology, in a practice that is effectively outlawed under EU privacy laws.

Meta said it had “engaged positively” with the Information Commissioner’s Office (ICO) over the plan, after it paused similar proposals in June in the UK and EU. The pause came after the ICO warned tech firms to respect the privacy of users when building generative AI.

On Friday, the ICO made it clear it has not provided regulatory approval for the plan, but will instead monitor the experiment after Meta agreed changes to its approach. These include making it easier for users to opt out of allowing their posts to be processed for AI.