Comment by dlcarrier

Here's a direct link to the notice: https://tfr.faa.gov/tfr3/?page=detail_6_2233

Temporary flight restrictions (TFRs) tend to be pretty terse, but they do usually call out "VIP" if they're due to someone visiting.

The type listing of "security" gets thrown around a lot, though. For example there's a permanent security TFR around the closest Air Force base to me (https://tfr.faa.gov/tfr3/?page=detail_5_8746) because they regularly fly unmanned aircraft that can't fly in insufficiently controlled airspace, and the standard airspace layout around an airport of that size isn't sufficient, so instead of making special rules for that airport, there's a "security" TFR to give air-traffic controllers extra control of what would normally be uncontrolled airspace.

It is pretty unusually to get such a short notice, and to not have instructions for exemptions.