Hucknall and Bulwell residents are being warned to beware of scams tricking them into releasing their bank details over the phone.
In an offence known as vishing, fraudsters pose as bank staff, police officers and officials when they call.
A Neighbourhood Watch spokesman said: “People can help by making family members, friends, neighbours and colleagues aware of how to protect themselves against these scams. It is particularly important that we raise awareness with older members of the community who may not be online to receive information we send out.”
For advice, ring Action Fraud on 0300 123 2040 or go to www.actionfraud.police.uk