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My requirement is: that when I share a file with an external user, they have to first verify the email with OTP before accessing the file. I also want complete visibility of who is accessing my file. How to achieve it?

Hi Vineet, 


Welcome to Box Community and glad to assist!


First, you can enable 2-Step Login Verification for External Users


  • Go to Admin Console > Enterprise Settings > Security.

  • In the 2-Step Login Verification section, under External Users, click Configure.

  • In the 2-Step Verification for External Collaborators dialog box, select whether to disable 2-step login, enable 2-step login for all external collaborators, or enable for or except for a defined set of external collaborators. If you enable 2-step login, also select when it will be enforced. For more details, see the 2-Step Verification section in Enterprise Settings: Security Settings.  

  • Click Save

  • Use MFA to authenticate this change, using the method described in Multi-Factor Authentication Required for Admin Console Critical Actions.

  • At the top of the page, click Save.

Meanwhile, to keep tabs on who has access to your Enterprise's owned contents, please run a Collaborations Report


Thanks for posting! 


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