The Biden administration has presented Chinese company ByteDance with an ultimatum: sell your popular video-sharing app, TikTok, or be banned nationwide.

TikTok has not yet indicated it will sell, but has attempted to persuade U.S. officials that they can address security concerns and meet the level of proposed scrutiny. TikTok’s CEO has argued a ban would not address security concerns.

But what would a ban mean for consumers? Is there any precedent for such a ban?

NBC News spoke with four people who have studied cybersecurity, national security and technology policy who offered some ideas about how a TikTok ban could work.