Telegram CEO Pavel Durov, facing charges in France, has agreed to provide user data, including “IP addresses and phone numbers,” to government authorities if they have “valid legal requests.”

Durov announced Monday that Telegram, the popular encrypted messaging app touted by users for its privacy strengths, will disclose the data of users who violate the app’s rules to relevant authorities “in response to valid legal requests.” The announcement marks a dramatic shift in Telegram’s policy, which previously emphasized strong privacy protections and limited cooperation with governments.