The incident occurred on Hartwith Bank in Summerbridge at around 4.45pm on Wednesday 14 October 2020.
A man and a woman entered the home of a woman aged in her 80s while pretending to be from a disability service.
The suspects took three bank cards and fraudulent transactions have taken place in Ripon and Darlington.
Police are appealing for information which will help to identify the suspects, including anyone who recognises the person in the CCTV image which is from TK Maxx in Darlington around an hour after the incident.
Anyone with information that could assist the investigation should contact North Yorkshire Police on 101, select option 2, and ask for Katie Bell. You can also email firstname.lastname@example.org
If you wish to remain anonymous, you can pass information to Crimestoppers on 0800 555 111.
Please quote the North Yorkshire Police reference number 12200181553.