It’s no secret that some messaging apps are favored by authoritarians, but one app may be explicitly designed with spying in mind. Unnamed US officials speaking to the New York Times say that the chat app ToTok is believed to be a surveillance tool for the United Arab Emirates. According to a classified intelligence report, the UAE uses ToTok to follow users’ conversations, track locations (under the guise of weather), determine social connections and look at media. Most of the app’s million of users live in the UAE, but it’s popular elsewhere in the world and has seen a surge of demand in the US.