divulgater
/ˌdɪvˈɡlʌɡətər/Definitions
1. noun
A person or thing that divulges or discloses information, especially in an official or public capacity.
“The journalist was accused of being a divulgater of confidential documents.”
2. verb
To reveal or disclose information, especially in an official or public capacity.
“The company was criticized for divulging sensitive customer data.”