Anyone with an iPhone or Android device tucked in their pockets hould stay vigilant today. The UK government is testing an Emergency Alert system on Sunday which will ring out of every device across the country at 3pm.
Although this warning is simply to put the new technology through its paces in readiness for a real crisis in the future, it could actually put some users in danger.
Experts are warning that the Emergency Alert is the perfect smokescreen for cyber criminals who will use the test to try and trick phone users into handing over personal data.