There has been an increase in reports made in May by TSB customers relating to “port-out” fraud. Fraudsters are number porting a victim’s telephone number to a SIM card under their control and then using the number to access the victim’s bank accounts.
To gain control of the victim’s phone number, fraudsters convince the victim’s mobile phone network provider to swap their number on to a SIM card in the fraudster’s control. Once the fraudster has control of the number they are able to intercept the victims’ text messages, allowing them to use services linked to the victim’s phone number. This can include requesting an online banking password reset or access to any two factor authentication services.
Victims have reported large losses as a result of this fraud. One victim initially dismissed text messages received from their network provider containing a PAC number. Two days later £6,000 was removed from the victim’s TSB current account. The victim subsequently contacted their phone provider and was informed that someone contacted the provider purporting to be the victim and had cancelled their contract and transferred their number to a new SIM. This action allowed the banking fraud to take place.
For more information on this and how to prevent further fraud please click the link below