NewDrone detection · built first for prisons
Find the drones radio detectors miss.
Stillsky hears, sees and reads drones, marks where a payload landed, and builds the evidence pack. Built first for prisons and jails, ready for any site with a fence.
$4,500 pilot, credited if you subscribe · Installed in a day, live in a week
The problem
Drone incidents at federal prisons rose 20×. Most detectors can't hear the quiet ones.
- drone incidents at federal BOP prisons, 2018 to 2024
23→479
drone incidents at federal BOP prisons, 2018 to 2024
Source: WAFF, Apr 2026 (opens in a new tab)- drones the FBI detected around 2026 World Cup venues, with more than 700 seized
~1,600
drones the FBI detected around 2026 World Cup venues, with more than 700 seized
Source: Police1 (opens in a new tab)- agencies DOJ and DHS expect to certify for drone detection within two years
~1,500
agencies DOJ and DHS expect to certify for drone detection within two years
Source: Federal Register 2026-13609 (opens in a new tab)- FAA proposes flight limits over data centers, energy sites and prisons, with Remote ID receiving required
FAA proposes flight limits over data centers, energy sites and prisons, with Remote ID receiving required
Source: Federal Register 2026-08943 (opens in a new tab)
Why RF alone fails
Most detectors listen for the radio link between drone and pilot. Smugglers learned to switch it off. Stillsky listens for the propellers, watches the sky, and tells officers where the package fell.
What Stillsky Track does
From the first propeller sound to a case file.
01
Built for drones flying radio-silent
Watchposts listen for propellers and watch on camera, so a drone on pre-programmed waypoints with its link off still shows up. Remote ID and RF add identity when they are there.
02
Pins where the package landed
Officers get the drop zone and a clip on their phones while the drone is still overhead.
03
Evidence built for prosecution
A timestamped clip, the full track and the launch-site estimate in a hash-chained pack, in open formats investigators can import.
04
Works with what you already own
Pathfinder takes feeds from your RF detector and cameras, and puts alerts on your Genetec or Milestone screens. Keep your current system.
Who it's for
Built first for prisons. Ready for any site with a fence.
The same Watchposts and the same Pathfinder software protect a county jail, a substation, a stadium or a base. Only the map changes.
One intrusion, sixty seconds
A drone heads for the yard with its radio off.
Scroll to step through it. Everything shown is Stillsky Track.
Elapsed
T+00s
T+00s
A dark launch, 1.2 km out
A drone lifts off from a parked car on a pre-programmed route with its radio link off. An RF-only detector hears nothing. Watchposts hear the propellers.
The system
Sensors on poles. One brain that fuses them.
Ground sensor node
Watchpost
A solar-powered box on a pole that hears, sees and reads drones: acoustic and vision first, plus Remote ID and non-content RF. It is built to catch the drones flying with their radio off. Installs in one day.
- Senses
- Acoustic · vision · Remote ID · RF
- RF range
- 1–3 km line of sight
- Install
- < 30 min per node
- Power
- Solar, 3 cloudy days
Autonomous tracker drone
Shadow
An autonomous drone that launches from the Hive, flies to the intruder and holds it on camera at a safe standoff. In development, not yet available.
- Speed (target)
- 80–120 km/h
- Endurance (target)
- 25–40 min
- Navigation
- Design goal: GPS-denied
- Payload
- Stabilized zoom camera
Autonomous net interceptor
Stoop-N
Flies itself to the target and captures it in a net under a parachute, only after a certified officer approves. For certified agencies, whose officers operate it. In development, not yet available.
- Speed (target)
- 120–180 km/h
- Range (target)
- 1–3 km
- Capture
- Net + parachute
- Per engagement (est.)
- ~$200–500 consumables
Dock and launcher
Hive
A weatherproof dock on a roof or truck that stores, charges and launches Shadows and Stoops automatically. Runs Pathfinder locally if the internet drops. In development, not yet available.
- Launch (target)
- 5–10 s from command
- Bays
- e.g. 2 Shadow + 4 Stoop
- Edge compute
- Works offline
- Variants
- Roof · vehicle · cased
The AI brain
Pathfinder
Fuses every sensor, including the ones you already own, into live tracks, marks where a payload dropped and builds the evidence pack. Trained once, runs everywhere.
- Fusion
- Multi-sensor, multi-target
- Interop
- Genetec · Milestone · TAK/CoT
- Updates
- Signed, over the air
- Deploy
- Edge + cloud
Paid 30-day pilot · $4,500
Test it on your own perimeter.
A warden can sign it. The pilot runs next to whatever you already have, and the full fee is credited if you subscribe.
After the pilot: Track Lite $2,500 or Track Pro (Corrections) $6,500 per site per month. Grant-funded? Own the sensors and subscribe to the software.
Day 1
Install
Watchposts on existing poles or our masts, on solar or site power. Nothing on your IT network.
Week 1
Live
Real alerts, drop zones and evidence packs going to your officers.
Day 30
Review
What Stillsky caught next to what your current detector caught, with false alarms and time to alert.
Your dashboard
Sign up and fly a scenario in two minutes.
Create a free account and the live operator console is waiting on your dashboard: the same map, AI watch officer and evidence packs your officers would use.
Legal by design
No certification wait for Track.
- Watchposts only receive. No jamming, and no decoding of communications content.
- Interceptors go only to certified agencies, whose own officers operate them. Stillsky never does.
For investors and partners
Pre-launch, and building in the open.
- Pathfinder and the operator console work today. Create a free account and run a scenario.
- The Watchpost is designed in CAD, and field units are being built for the first pilots.
- Pilots are open to prisons, jails and critical sites.
See your site the way Pathfinder sees it.
Book a 30-minute walkthrough. We map your perimeter, show a live track in the operator console, and scope a pilot around your real threat.
Or try the live console free: simulated site, no card.