People have been warned to be alert to a "voice phishing" scam in which fraudsters claim to be ringing from a utility company seeking to "fix" issues with the customer's broadband service.
The scam involves consumers receiving a phone call from someone purporting to be from a service provider, generally supplying broadband, alerting the householder to issues with their supply and offering to repair it.
In order to do so, the fraudsters will request remote access to a laptop or desktop computer, as well as debit/credit card information and security details.
Gardaí warn that the callers are professional and sound genuine. They are able to transfer people to a supervisor if requested.
Speaking on RTÉ's Drivetime, Detective Garda James O'Meara said the callers can sometimes have basic information about householders, such as their name and address.
"We have a tendency to put a lot of information on the internet," he said.
Detective O'Meara said that one financial provider has had more than 20 complaints from victims of the scam recently.
He said that while financial institutions are very good at picking up these scams, a lot of people do not report them.
Detective O'Meara said if anyone is suspicious they should hang up immediately and find a number for their service provider from a bill or the company's website.
He recommended that people call the service provider back from another phone, as sometimes the fraudsters will have left the phone line open.
He added that if anyone thinks they have been victim to such a scam they should contact their bank and Garda Station immediately.
The Banking and Payments Federation Ireland has said people should "always be wary of any unexpected calls or texts, especially those asking for personal details or payments".
"Never give your financial or personal information in order to release money, refund fees, or access to your computer," said Niamh Davenport, head of the BPFI FraudSmart programme.
"Fraudsters are very convincing, but don’t be afraid to take the time to make the relevant checks.
"The caller will try to rush you or make you feel foolish and negligent if you don’t follow their instructions, but this is all designed to panic you into doing something you wouldn’t otherwise do."