Police have warned residents in Harrogate and York after seeing an increase in reports of courier fraud in the last week.
The fraud comes in many variations.
The scammer will phone the victim claiming to be someone official, like a bank manager, police officer or law enforcement agent.
The fraudsters aim to panic the victim by saying that something serious has happened, such fraudulent payment has been spotted on their card, or someone has stolen their identity.
The victim is instructed to ring the number on the back of their bank card, or to phone the police to confirm that the call is genuine.
However, when the victim hangs up, the scammer stays on the line, keeping the connection open.
If the victim immediately does as instructed and makes the call, it is the scammer who replies, pretending to be the bank or police.
He/she then elaborates on the alleged genuine issue.
The victim may be asked to disclose their PIN number and told that a courier will be sent to collect their card.
Or they could be told there is a corrupt member of staff at their bank, Post office or bureau de change, and they needed help with an undercover investigation to identify that person.
They might be asked to withdraw large sums of money and hand it over to the courier.
Some victims have purchased high value items and handed them over after being duped into believing that they are helping the police track down counterfeit goods.
A police spokesperson said:
“The bank or police will never ask for pin numbers; send couriers to collect bank cards; ask people to move money to another account; ask for help with investigations; or ask for cash or goods to be handed over.
“These scams can be intimidating, so do not engage and just hang up.
“To confirm the call is genuine, never ring back using a number given to you by the caller.
“Make the call from another phone or wait at least five minutes before making another call. This ensures the line is clear and cut off, so you will no longer be speaking to the scammer or an accomplice.
“Please remember that the only person that should have your card and pin-is YOU.”
There is further information available on the Action Fraud website. If a crime is in progress, please report it on 999.

Harrogate friends to cycle 470 miles for brain tumour charity
Countdown legend brings 'Word Perfect' tour to Harrogate Theatre
Harrogate Town set for Boxing Day derby as fixtures revealed
Free Fuel Friday: Bilton woman is twelfth winner to claim full tank
New postcard celebrates Harrogate's bid to become UK's Town of Culture
Thieves attempt to break into garage at Harrogate home
Yorkshire Water urges customers to cut water use during heatwave
North Yorkshire ranks fifth highest in region for garden waste charges
Harrogate Rugby Club gears up for Beer Festival and Family Fun Day this Saturday
Harewood secures major National Lottery grant for landmark project
Harrogate's Duchy College recognised at Independent Schools of the Year Awards
Harrogate brewery's beer recognised among best in country
Rare chance for dogs to visit RHS Harlow Carr
Jespers of Harrogate to celebrate 125th anniversary
Harrogate Grammar praised in latest Ofsted inspection
Boroughbridge mum completes 100km challenge after daughter's life-saving heart surgery
Great Yorkshire Show almost sold out with two days at full capacity
Harrogate pupils' harvest helps feed homeless people
Spot the Board: Eagle-eyed residents scoop England shirts
Fleetwood Mac and Queen tributes to headline Harrogate Food & Drink Festival


