One conscious decision made when building this was not to blast 2FA codes inside some channel where potentially anyone can see them, which would indeed be pretty bad when users are constantly being added to your Slack workspace.
Instead, codes are fetched by explicitly using the slash command and only users who are granted access to them can see them. So if a new person joins your team and types `/tfa` into the box, they won't see anything because nobody has given them access to any codes.
Instead, codes are fetched by explicitly using the slash command and only users who are granted access to them can see them. So if a new person joins your team and types `/tfa` into the box, they won't see anything because nobody has given them access to any codes.
Does that make sense?