One of the best things you can do to prevent a cyber attack is to avoid using public, unsecured WiFi on any device that contains work data.  Additionally, make sure you’re using proper WiFi encryption protocols.  Wired Equivalent Privacy, (WEP) WiFi Protected Access, (WPA), and WiFi Protected Access Version 2 (WPA2) are the top three available, with WPA2 usually being the best choice.