The Guest Network on Your Home Router
Handing a visitor your main Wi-Fi password puts them on the same network as your work laptop and home cameras.
Wi-Fi, internet security, connection troubleshooting, and networking for small businesses. All written in-house.
Handing a visitor your main Wi-Fi password puts them on the same network as your work laptop and home cameras.
A file sent as an invitation or parcel receipt is harmless while it's only received. The danger starts when it's installed.
Running VPN servers is expensive. If you aren't paying with money, something else is paying.
Most accounts that get taken over weren't guessed. The password was already known, leaked from somewhere else and reused here.
Sharing a folder locally feels safe because only people in the house can see it. The problem is that a local network is rarely as small as imagined.
What leaks from online meetings is rarely the result of eavesdropping. It's usually a notification popping up on a shared screen, or a meeting link passed around a group chat.
An old phone being sold carries more than photos: your home Wi-Fi password, live app sessions, and access to the CCTV cameras set up through its apps.
Modern hidden cameras are tiny, cheap, and send their footage over Wi-Fi. That's exactly their weakness: they have to be on the network, and the network can be inspected.
You set up Wi-Fi at your parents' house, then went home. Since then, every "your parcel is held" message and every call "from the bank" reaches them with nothing in between. Most of that risk can be reduced in one afternoon.
Everyone changes the router password. Almost nobody changes the printer password, even though the printer keeps copies of the documents it has printed.
A USB cable carries power and data on the same wire. At a public socket, the easiest defence is not to use that socket at all.
A genuine internet provider employee never asks for an OTP code. A few simple patterns separate an official visit from a scam attempt.
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