Meath County Council says it has been targetted by cyber criminals who attempted to steal over €4.3 million.
The council says the attempt involved identity theft, but was detected before the transaction was completed.
The Council's bank was alerted and the matter was reported to the Gardaí.
The Garda Financial Intelligence Unit with the assistance of Interpol are investigating.
The funds have been secured and the matter is now the subject of criminal investigations and legal proceedings in Ireland and abroad.