“This change will represent one of the largest shifts in facial recognition usage in the technology’s history,” Jerome Pesenti, vice president of artificial intelligence for Facebook’s new parent company, Meta, wrote in a blog post on Tuesday. “Its removal will result in the deletion of more than a billion people’s individual facial recognition templates.”

He said the company was trying to weigh the positive use cases for the technology “against growing societal concerns, especially as regulators have yet to provide clear rules.”