What are the dangers of public networks?

A public WLAN usually requires no or only very weak authentication to connect to the network, which is why it is easy for hackers to get between the hotspot and the user without being seen and to manipulate the requested websites, read data or spread malware. A public WLAN that requires a password, as is often the case in hotels, offers greater security, but even there, caution is advised, which is why you should always use a VPN access in addition to the security basics such as an activated firewall and activated virus scanner. Only carry out banking in a familiar WLAN.