Drones now deliver drugs, phones, and weapons into prisons at scale. Learn why radar, RF, and jamming fall short at correctional facilities, and how passive acoustic detection fits prison perimeters.
A single drone sighting can shut a runway for hours. Learn why European airports keep grounding flights, why radar and cameras miss the drones, and how passive acoustic detection confirms…
Drones let attackers surveil data centers and probe wireless networks from outside the fence. Learn why most facilities have no aerial defense and how passive acoustic detection adds early warning.
Energy sites are hardened against intruders on the ground but exposed from above. Learn why drones bypass perimeter security at refineries and how passive acoustic detection adds early warning.
Drone incursions over stadiums have risen sharply and now halt games mid-play. Learn why crowded venues are exposed from above and how passive acoustic detection gives security teams early warning.
Sentinel is a free app from Askalon INDUSTRIES, currently in beta.
Leave an old phone at your window and it listens for drones.
We’re inviting a small group to test…
Last updated: May 27, 2026 Key Insights Drones reveal themselves through four signatures: visible light, radio signals, radar reflections, and sound. Every detection sensor is built around one of these…
Last updated: May 27, 2026 Key Insights Orange Business launched Drone Guardian in March 2026, Europe's first subscription-based counter-drone service built on 19,700 telecom towers across France The subscription model…
Last updated: May 27, 2026
Key Insights
A tactical aerostat solves the payload vs endurance tradeoff that limits both quadcopters and fixed-wing surveillance drones — helium lift means sensor weight…
Last updated: May 27, 2026
Key Insights
Latvia's €50M acoustic drone detection network detected the Rēzekne drone but the kill chain failed — the gap was response time, not sensor…
Stop Buying Radars: The $100k Mistake Most Security Managers Make. We speak to security directors every week who want to protect their site, but think they can't afford it.…
Most people don’t realize that the simplest way to know a drone is flying nearby isn’t radar, cameras, or radio sniffers - it’s sound. Acoustic detection is by far…