You don’t have to give Clubhouse access to every single contact in your phone to use the app, but doing so is the only way you can invite other users to Clubhouse. If you’ve already shared your contacts, the Clubhouse spokesperson says you can revoke access to the list using the settings app on your iPhone and contact Clubhouse support to delete all previous data.
But that doesn’t stop other users from uploading your phone number along with their contact lists—and that’s become a sore spot for people who don’t even use the app.
Clubhouse had turned on geofencing to limit users to servers in specific regions—excluding mainland China, for example. It also took steps to enable encryption that would limit Agora’s access to raw audio data. But Agora currently still has access to metadata, raw audio data, and the encryption keys.
However, security and privacy experts doesn’t recommend using Clubhouse for sensitive conversations, particularly if you’re concerned about information landing in the hands of the Chinese government.