Four of the largest school boards in Canada have launched lawsuits totalling $4.5 billion against Meta, Snapchat, and TikTok, accusing the social media titans of harming students’ mental health and disrupting the education system.

The Toronto District School Board, Peel District School Board, Toronto Catholic District School Board, and Ottawa-Carleton District School Board have filed four separate but similar cases in Ontario’s Superior Court of Justice.