Only connnect to secure Wi-Fi
Never use the passowrd that came with your Wi-fi router or hub. Change it to a strong password; something that no one can guess or use without your permission.
IF you use Wi-Fi on the go, make sure your're using a genuine, secure connection. Fraudsters can set yp hotspots in cafes and other public areas.If you wnat to use a company's free Wi-Fi, ask a staff member to show you which Wi-F- is their connection.
Its' good advice to never log into online accounts that store any payment or banking info (like Internet Banking,Paypal or online shopping sites). If you are using public or free Wi-Fi.