Blog
Notes on the networks, devices, and signals around you — what they reveal, and what you can do about it.
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Your printer is telling everyone its name
mDNS makes printers, laptops and smart devices announce themselves to the whole network. Here's what they're saying, and how to see it yourself.
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The Wi-Fi you joined at the airport is lying to you
Evil twin access points are cheap, common, and still effective. What they can see, what to check before connecting, and the habits that actually protect you.
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Your smart-home gadgets are calling home more than you are
BLE advertisements are everywhere — earbuds, watches, tracker tags. Most are harmless, some aren't. Here's how to see what's in the room.