Clause 8.3 of Telegram's Terms of Service outlines the platform’s policy on disclosing user data to law enforcement authorities. It states that if Telegram receives a valid legal order from judicial authorities confirming that a user is a suspect in criminal activity, they may disclose sensitive information such as the user's IP address and phone number.
"8.3. Law Enforcement Authorities
If Telegram receives a valid order from the relevant judicial authorities that confirms you're a suspect in a case involving criminal activities that violate the Telegram Terms of Service, we will perform a legal analysis of the request and may disclose your IP address and phone number to the relevant authorities. If any data is shared, we will include such occurrences in a quarterly transparency report published at: https://t.me/transparency."