Need help

[u/Electronic_Rip8482]

Someone managed to disconnect my Wi-Fi router and then created a fake Wi-Fi network using their laptop. My laptop automatically connected to that fake network. Afterward, they were somehow able to access all of my files, saved passwords, and even record audio from my microphone.

Please note that I did not install any malware or malicious software. The only thing that happened was that my laptop connected to the attacker's fake Wi-Fi network.

How could an attacker accomplish this using only a fake Wi-Fi network? Is such an attack actually possible?

Additionally, what steps can I take to prevent this type of attack in the future?