Basically title. Recently I saw a new option in Chromium website permission settings called “allow access to local network” or something like that and I know some antiviruses on Windows that can list all devices connected to the same WiFi network. I’m usually using Firefox based browsers that obviously don’t have the option to disable or enable that access. So can some really invasive websites mine data about my local network, connected devices etc? And if so, what can I do to prevent it except for just disconnecting everything else when visiting such websites?
There is a Firefox extension that blocks port scanning from websites, and the prime example is eBay. If you block eBay with this extension, you cannot log in. eBay specifically requires a port scan of your machine or it won’t let you log in. So based on just that alone, I would say that yes, there is a risk.
What in the world are they digging for?
Anything that can help advertisers. In this case they can get data about your wealth and also assume that the nearby devices belong to the same person or family. That’s some very useful data for unethical advertisers.
Interesting, I didn’t know about that. Bleeping computer has a good write up on it (I’m assuming they broke the story) https://www.bleepingcomputer.com/news/security/ebay-port-scans-visitors-computers-for-remote-access-programs/
HA!