Approved products in the US House of Representatives include Microsoft Teams, Signal, Apple’s iMessage and FaceTime, and Amazon-owned messaging service Wickr. Meta said WhatsApp, which has about 3bn users globally, is approved for official use in the Senate.

Meta disagreed with the move, a company spokesperson said, noting that the platform provides a higher level of security than other approved apps.

Messaging app WhatsApp has been banned on congressional staffers’ government devices, the U.S. House’s chief administrative officer (CAO) confirmed Monday. “Protecting the