Data from the Report Fraud service, run by the City of London police, reveals a sharp rise in account hijacking scams. In many cases, hackers take over a person's social media account and use their identity to sell fake event tickets, such as to sold-out concerts, to unsuspecting friends and family.
The true scale of the problem is likely to be much larger, as many victims do not report the crime, often out of embarrassment or because the individual sum involved is small.
Separately, fraudsters have been using "Hi mum" style scams via WhatsApp and text messages, pretending to be a relative in an emergency and urgently requesting money. Santander data shows that among its customers, criminals pretending to be the victim's son were the most successful at extracting cash, followed by daughters.
Ch Supt Amanda Wolf, head of Report Fraud operations, said: "For most people, being hacked isn't just a cyber issue – it's personal. It can leave victims locked out of important accounts, worried about what information has been accessed, and concerned that criminals may use their identity to target others."
She added that what starts with one compromised account "can quickly impact family, friends and colleagues as fraudsters exploit trusted relationships to commit further fraud".
In response to the rise in such scams, Report Fraud is launching an awareness campaign urging the public to protect their online accounts by switching to passkeys where available. Passkeys use a device's biometric authentication and cannot be hacked like a password.