Richard Hurley, from CIFAS - the UK's Fraud Prevention Service - gives advice on how to avoid being scammed by conmen posing on the phone as a bank.
Among the victims was a couple from North Yorkshire who have been conned out of their entire life savings.
An urgent warning's been issued by police after a couple from North Yorkshire were left penniless by conmen who posed as bank officials to rob them of their entire life savings of tens of thousands of pounds.
Over just a few days, five different victims - all farmers from in and around Selby - have had a fortune taken from their bank accounts by an organised crime gang.
Jon Hill reports.
A couple who have been conned out of their entire life savings of tens of thousands of pounds by bogus bank officials have urged other customers to be on their guard.
They are among five different bank customers - all farmers from the Selby area - who have been scammed by conmen over the last ten days.
The fraudsters phone customers claiming to be from their bank and warning them of suspicious transactions before persuading the victims to transfer their money to a so called safe account.
North Yorkshire Police has now issued an alert to the scam. Jon Hill has been to meet one couple who lost their life savings but did not want to be identified:
North Yorkshire Police have issued a warning to bank customers about a telephone scam in which bogus bank officials have made account holders transfer thousands of pounds into fake accounts.
In the past 10 days, five farms in the Selby district were called by men claiming to be part of a bank fraud investigation team who urged customers to transfer their money into what they claim were "safe accounts".
They have done this either through internet banking or told the victim to go direct to their bank and not mention it to the bank staff, claiming the staff were also under investigation.
On each occasion the suspects have called the victim and claimed that someone had attempted to cash a cheque on their account for £11,500.
In some incidents they have asked the victim to call the number on the back of their bank card and unbeknown to them, they have held the phone line open, resulting in the victim believing they are calling their bank, when in fact, they are speaking to the fraudsters.
One person lost their entire life savings.
Police have arrested five men as part of a fraud investigation involving charitable funds.
Two men aged 32 and 53 from Halifax, two men aged 33 and 43 from Dewsbury and one 38-year-old man from Sheffield have all been arrested today.
Six properties and a business premises across South and West Yorkshire are also being searched as part of the investigation.
The five men have been taken to police stations in South and West Yorkshire for questioning.
The North East Counter Terrorism Unit is leading this investigation.
The Charity Commission is supporting the NE CTU as part of this investigation.
Two men from West Yorkshire are among eight people who have been arrested as part of an investigation into charity fraud involving thousands of pounds intended to help people in Syria.
Kent Police arrested the men at addresses across the UK during an early morning operation after £31,816, €8,310 (£6,857) and US$10,700 (£6,413) were seized at the Port of Dover on December 23 2012.
The money, which had come from four UK-based charities, was taken by police who believed it could be used for criminal or terrorist activities.
A 35-year-old man from Dewsbury, and a 43-year-old from Huddersfield are among eight who are being questioned at police stations around the country.
The final two defendants involved in a £1.28m fraud against the Department for Environment Food and Rural Affairs (DEFRA) in York have been jailed.
Michael William Bostock, 39, of Stafford was jailed for three years and six months after previously pleading guilty to money laundering the proceeds of the £1.28m theft from DEFRA. He was also disqualified from being a company director for five years.
Michael Ian Davies, 48, of Staffordshire, was sentenced to 15 months in jail.
The pair were part of an organised crime gang who used the proceeds to buy luxury cars and £830,000 worth of gold.
Ilkley retail grandee Sir David Jones has appeared before Leeds Crown Court judge to deny three counts of fraud.
The 70-year-old former boss of JJB Sports faced two counts of making a misleading statement, contrary to the Financial Services and Markets Act, and one count of using a false instrument, contrary to the Forgery and Counterfeiting Act.
The charges refer to the period between July and October 2009 when he was executive chairman of JJB Sports.
He said not guilty to each of the three charges when they were read out by the clerk.
He will stand trial next year, with it expected to run for five weeks, with extra time allowed as the former retail expert has Parkinson's disease.
Sir David came into court carrying two copies of his autobiography Next To Me.
The charges of making a misleading statement referred to £1.5 million loans received from fellow sportswear giants Dave Whelan and Mike Ashley. The charges relate to stock market announcements.
The false instrument charge related to an allegedly false bank statement.
A 43-year-old woman has been sentenced to two years in prison after pleading guilty to fraud by abuse of position.
Julia Patterson from Ranmoor, Sheffield took money from an 88-year-old relative over a number of years after she gained power of attorney.
The relative lived in a care home in Sheffield and had been given a small living allowance by Patterson. It later emerged that Patterson was in arrears with providing the finance for her relative's care.
South Yorkshire Police discovered that £251,331 had been paid in to accounts and credit cards of Julia Patterson. The amount taken from the relative’s accounts totalled £471,552.
The relative died in January.
A gang of fraudsters have been found guilty of a series of "crash for cash" scams worth more than half a million pounds.
A major police investigation began after they staged a bus crash in the Burngreave area of Sheffield two years ago. Detectives eventually linked them to 10 more incidents in Sheffield, Rotherham and Halifax.