Packet sniffing question

[elrasho]

Anyone know if you can find out if your packets of data are being sniffed over your WiFi connection?

I know to overcome it a vpn can be used so they can't see what data is sent from your device. But I wanna know if you can find out if someone is actually doing it and also pinpoint the device?

 

[elrasho]

No, by definition, you’re broadcasting signals in the air that anyone can pick up, record and analyse at their leisure. A packet sniffer can be completely passive and just record the data being transmitted. As such, you can’t detect it other than by physical search.

And no, a VPN won’t overcome a packet sniffer because the VPN traffic either starts at the router or the VPN traffic with the keys is being sniffed. What encryption are you using WPA? WPA2? WLAN is fairly difficult to extract data from.

If you are up against someone who is sufficiently sophisticated they’re using a packet sniffer then dump the WLAN and get on a cable. Or, better yet, stop doing whatever it is you’re concerned about being intercepted.

A VPN using SSL will be enough to stop the person actually seeing the data right?

 

[elrasho]

Yes thought as much, will get them to format their hard drive and reinstall windows 10 with a VPN. Also change the WiFi password to something super hard and also ensure he's using WPA PSK2. Thanks for the advice