Back in January, I wrote about how tools can be modified beyond their intended use. Not always with bad intent, but not always with good either. https://intspired.co.uk/blog/f/beyond-the-surface
Since then, a few things caught my attention. Unrelated on the surface, but all wireless, all open, and all sitting just outside where most security teams are looking.
A general-purpose device transmitting amateur radio
Image 1: Amateur Radio Meets General-Purpose Hardware (Flipper Zero APRS setup).
As a ham radio user, I came across a GitHub project by Richard YO3GND demonstrating a Flipper Zero transmitting APRS, a protocol typically associated with dedicated amateur radio equipment.
It's experimental. Imperfect. Not something you'd stake your comms on.
But that's not the point. The point is that a low cost, general-purpose device is now capable of emulating a specialised radio function simply by implementing the protocol in software. The hardware didn't change. The capability did.
Computer vision that sets up in minutes
Image 2: Real-Time Face Detection Using OpenCV — Accessible Computer Vision in Practice.
Computer vision tools and the development solutions that support them aren't new. What's changed is the accessibility. Detection capability is no longer the barrier. Frameworks have been simplified to the point where a working setup can be running in minutes, on commodity hardware.
The specialisation required has dropped dramatically. The output hasn't.
Passive detection at scale
Image 3: From Detection Hardware to Crowdsourced Surveillance — Seeed Studio XIAO ESP32S3 and DeFlock Maps.
Tools like OUI-SPY, built on hardware such as the Seeed Studio XIAO ESP32S3, can passively detect nearby Bluetooth and BLE broadcasts, flag recognised identifiers, and alert on known signal patterns without active probing. These tools aren't single-purpose, and the same understanding that enables detection can be used to avoid it.
What happens when that detection is contributed at scale is a different question entirely. Platforms like DeFlock Maps illustrate it clearly. A crowdsourced ALPR surveillance map, DeFlock currently shows over 75,000 cameras in view across the US alone. Individual observations, aggregated, become infrastructure-level intelligence.
Transmit. See. Detect. Three capabilities, three communities, all moving in the same direction: accessible, affordable, and functional enough to matter. Not theory. Right now.
Why security teams should care
Most of these developments aren't appearing in threat intelligence feeds. They're appearing in radio groups, maker communities, and computer vision forums. The people building them aren't adversaries. They're curious, technically capable, and sharing their work openly.
That openness is exactly what makes it relevant. Capability that's documented, reproducible, and discussable in public is already in play. The gap between innovation and risk is narrower than most organisations assume.
Awareness won't close that gap. But without it, you won't even know it exists.
If it's there, it's observable.
INTSPIRED®
Offensive by design. Intelligent by nature
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