Facebook secretly looked at Snapchat, Amazon, and YouTube user data, documents reveal

Facebook secretly looked at user data to help better understand how users behave on competitor sites, according to documents released by a federal court in California. The documents, unsealed on Tuesday as part of an ongoing class action lawsuit between Meta and consumers, show that Facebook pursued a secret project to analyze the traffic and analytics of its rivals, first focusing on Snapchat, and later Amazon and YouTube.The documents, submitted by lawyer Brian J. Dunne for U.S. District Judge