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Paw Detector – Malicious USB cables detector

A pocket-sized, plug-and-play adapter: the LED lights up steady if your USB cable hides a keylogger or is quietly moving your data.

$18.00

In stock

In the box

Paw Detector device only

Not included

A USB cable to test is not included — the device checks a cable you provide, not one it ships with.

You also need

A USB cable to test (not included) — any cable you want to check before you trust it.

What Is Paw Detector?

Paw Detector is a pocket-sized, plug-and-play adapter that checks any USB cable for hidden keyloggers and malicious data transfers before you plug it into your phone, laptop, or charger. A keylogger is a tiny hidden device that secretly records what you type; a malicious cable looks just like a normal charging cable but hides that same kind of circuitry inside the connector, ready to move your data the moment you plug it in. Paw Detector sits in between: connect the cable you want to test to its port connector, then plug Paw Detector itself into your computer’s or charger’s USB port. Its onboard LED lights up steady if the cable is malicious, so you know before any harm is done. There’s nothing to install or configure — just plug it in and check the light. It’s small enough to carry on a keychain or in a bag.

Test a cable before you trust it

You’re about to charge your phone at an airport kiosk, hotel room, or with a borrowed cable, and you don’t know what’s really inside it. Plug the cable into Paw Detector’s port connector, then plug Paw Detector into the USB port and check the LED. If it lights up, the cable is malicious and moving data it shouldn’t — unplug it. If it stays off, it’s safe to charge with.

Start in 10 minutes

  1. Plug the USB cable you want to test into Paw Detector’s port connector.
  2. Plug Paw Detector’s other end into your computer’s or charger’s USB port.
  3. Check the LED: if it lights up, the cable is malicious — unplug it. If it stays off, the cable is safe to use.
  4. Still not sure? Watch the video walkthrough for a live example.
Microcontroller

CH32V003F4U6

Board dimensions

35 x 18 mm

Connectors

USB plug connector (host side, male), USB port connector (test-cable side, female)

Detection LED

Lights up steady (no blinking) when the connected cable is malicious

Form factor

Pocket-sized, keychain-portable

Detection method

Onboard analog (ADC) signal analysis on the microcontroller's port A pins

How do I detect a malicious USB cable?
Plug the cable into Paw Detector’s port connector, then plug Paw Detector into your computer’s or charger’s USB port. If the LED lights up, the cable is malicious — unplug it. If it stays off, the cable is safe to use.
A malicious cable detector is a small plug-in device, like Paw Detector, that checks whether a USB cable secretly acts as a keylogger (recording what you type) or moves your data without your OK. Paw Detector is plug-and-play: connect the cable to it, plug it into a USB port, and its LED tells you whether that cable is safe or malicious before you trust it with a charge or a connection.
Yes — “paw device” and “paw devices” are informal names some people search for Paw Detector, Electronic Cats’ plug-and-play adapter that checks USB cables for hidden keyloggers and unauthorized data transfers.
A USB detector like Paw Detector is a small adapter you plug in between your cable and your device. There’s nothing to set up: connect it, plug it into a public charging port, laptop, or wall charger, and its LED lights up if the cable is trying to move data it shouldn’t, so you know before you trust an unfamiliar cable or port.