Turning on a VPN app is the simplest option for users of public Wi-Fi to ensure a secure connection. VPNs secure the internet connection and guard the user against online threats. On the other hand, for company owners who run public Wi-Fi networks, constantly updating their Wi-Fi's name (SSID) and password from the defaults is a good practice. Also, keep their router updated with the newest software to ensure they have the most recent security fixes.