Short answer: yes, and it probably already has.
The physics
A current consumer drone, the kind sold at a mall, flies for 30 to 45 minutes on a battery, holds a stabilized 4K camera, and keeps a control link at 10 kilometers or more. Anyone within a short drive of your facility can put a camera 120 meters over your roof for the price of a mid-range laptop, and the pilot never has to leave their car. There is no fence tall enough to be relevant to this conversation.
The law
The airspace above your site is not yours. The FAA has exclusive authority over US navigable airspace, and there is no property-line boundary at altitude; unless your facility sits under restricted airspace or an active temporary flight restriction, a drone overhead is frequently legal. Trespass, privacy, and state critical-infrastructure statutes exist, but they mostly matter after you can prove what happened, which requires evidence you almost certainly are not collecting.
The uncomfortable half of the legal picture: you cannot fight back. Drones are aircraft under federal law, so downing one is a federal crime, and jamming its control link violates FCC rules. Counter-drone mitigation authority currently belongs to a handful of federal agencies. A private facility's lane is detection, documentation, and reporting.
So what can a facility actually do?
Work the lane. Since 2024, Remote ID has required registered drones to broadcast their position and their pilot's location in the clear. That converts "a drone can reach us and we're helpless" into a manageable security problem:
- Know it's there: a geofence alert the moment a drone crosses your boundary.
- Know who: the broadcast includes the control station location; your guard can go talk to a person standing in a parking lot instead of watching a dot in the sky.
- Prove it later: a 90-day log turns disputes, insurance claims, and police reports from anecdote into data.
A drone flying with Remote ID switched off won't show up, and anyone who tells you a passive sensor catches those is selling something. But the operator who switched it off has already committed a federal violation, and the great majority of overflights, contractors, hobbyists, photographers, are broadcasting right now over your site, unheard.
Book a 30-minute demo and see the traffic that's already over you.