I have 2 laptops (without LAN cables)
can a virus now spread from laptop A to laptop B via Wi-Fi?
Yes he can.
Theoretically yes.
Naturally. Routers transmit data. Viruses are data.
Okay, does that happen a lot?
OK
Well it depends on the virus. Some do and can do it, others don't. Also depends on the firewall
In my opinion, only if network access is allowed from one laptop to the other and data exchange is enabled in this way.
Okay thank you very much. And how does such a data exchange work?
Router and laptop transmit data to each other as soon as they have established a connection with each other. With W-LAN this is done via radio waves.
Don't be angry with me, but the formulation of your question shows that you don't really know anything about networks. Therefore it would make sense if you first familiarize yourself with the matter in principle: http://www.olivergast.de/blog/2011/04/16/netzwerkguide_1/
Otherwise, the correct answer to your title question "Yes, of course it works" would only cause you unnecessary worry.
Do I have to do something about the radio waves or would the virus then automatically transfer to the other laptop
That's right, I have no idea and the sentence yes, of course it works. I've heard it several times, that's why I'm worried me like that
It would be enough for me if you tell me that my worries are unjustified.
How should I rate this reaction now: "Too easy to acquire the linked know-how", "Captain Obvious" or just "Mimimi"? 🤔 😉
If i'm honest i'm scared to hit the link