DENBIGHSHIRE Trading Standards is renewing its warning to be extra vigilant following reports of telephone calls from a false computer company.
The cold callers, claiming to be from Microsoft Computer Software in London, are telling residents their computer's security is threatened and go on to offer free security checks.
If the initial sales pitch is successful, the victims help the fraudsters gain remote access to their computers via visiting a website called www.ammyy.com.
By visiting the site and downloading the legal software, it gives the scammers access to your computer and potentially to personal information that you may have on the computer, for example account log-in in formation and bank details, all of which could be used to commit fraud.
Emlyn Jones, Denbighshire’s Public Protection Manager said: “Residents should be aware that neither Microsoft or its partners make unsolicited calls to charge for computer security or fixes.
"If individuals need check then they should go to the official Microsoft website.”