WhatsApp group chat members are being warned they could be targeted by criminals, as Action Fraud reveals it has received 636 reports from victims of the messaging app this year.

The fraud often begins when a member of the group receives a WhatsApp audio call from the fraudster, pretending or claiming to be another member of the group. This is done to gain the individual’s trust, and often the scammer will use a false profile picture and/or display name, so at first glance it would appear to be a genuine member of the group.