You can ensure the privacy of your users' information in a few possible ways.
First, you can use the private view APIs available for iOS, Android, and React Native. On all three platforms, this will cause an overlay to appear over the specific views set as private.
Secondly, your users will have the option to blur out sensitive information in the captured screenshot, as displayed in the image below.
In addition, if you prefer to disable screenshots and video attachments entirely, you can control this from your side (see instructions for iOS, Android, and React Native).