A new study has highlighted the extent of the IT security risks faced by wireless broadband users.
Research conducted by CPP indicates that almost half of all Wi-Fi networks can be hacked in less than five seconds. Some 40,000 networks across the six cities tested were found to be at high risk.
In addition, almost a quarter of private wireless networks had no password attached, making them immediately accessible to criminals.
Michael Lynch of CPP said the report was "a real eye-opener" in highlighting how many people have a cavalier attitude to Wi-Fi use.
"We urge all Wi-Fi users to remember that any information they volunteer through public networks can easily be visible to hackers," he said.
"It's vital they remain vigilant, ensure their networks are secure and regularly monitor their credit reports and bank statements for unsolicited activity."
Chris Bruce, Chief Executive Officer of BT Openzone and Chair of the Wireless Broadband Alliance, recently claimed that the popularity of wireless broadband services is continuing to increase.