gatekeeper
/ˈɡeɪtˌkiːpər/Definitions
1. noun
A person or thing that controls access to something, especially a computer system or network.
“The company’s IT department is the gatekeeper of all employee email accounts.”
2. verb
To control access to something, especially a computer system or network.
“The software gatekeeps the user’s personal data, preventing unauthorized access.”
3. noun
A person who decides what information or entertainment to allow or block, especially in a social media context.
“The social media platform’s gatekeeper is responsible for removing hate speech from the site.”