There is a laptop - not mine, someone else's. That someone else, as far as I know them, are a bit lousy in their security best practices (do they even have AV installed? not to mention OS patches or rather the lack of them) so I wouldn't be suprised if their laptop was infected.
Thing is, they're bringing their laptop to my home in a few days and despite the above I'd like to allow their laptop to connect to the internet through my home WiFi network (connecting via Ethernet rather than wifi is also an option).
What are the dangers of doing so? Is it possible to somehow mitigate these risks and how?