You should avoid using public Wi-Fi networks for work because these networks are often not secure. Hackers can easily intercept the data you send and receive on public Wi-Fi. Additionally, some hackers will set up public Wi-Fi “traps” specifically for this purpose, and it can be hard to tell which hotspots are legitimate. If you have no other choice and must work on public Wi-Fi, make sure you do so while using a secure VPN.