However, a recent investigation by Watchdog revealed that some users of wi-fi hotspots are susceptible to attack by hackers - leaving tens of thousands of users at risk of fraud.
When using wi-fi your data (e-mails, internet addresses, keystrokes) is being transmitted across the airwaves and encrypted for security. It is possible malicious hackers can intercept this data unless you set up a security such as a remote access virtual private network (VPN).
This is something advised by major providers of wi-fi but not often set up by the user."
VPNs or virual private networks are needed when wifi if used to transmit or recieve company data.
