The cyber underworld is not short of people conversant with the art and craft of digital criminality. The financial sector is an appealing target for cybercriminals, the more so given that they can access the core systems of financial institutions even from far removed places in the world. Payment systems are increasingly relying on sophisticated IT platforms for clearing and settlements.
Areas to the south of the line were arable, those to the north were not. In the years just after Goyder drew his line, there was a period of high rainfall. Farmers pushed north of the Goyder line, building farmhouses and planting crops. But then, normal rainfall returned and Goyder's line reasserted itself.