Clay Calvert, director of Cybersecurity at MetroStar Systems points out in this FT article the scale of the cyber threat facing banks. "some of these organisations have complexes not quite as big as Google but it is an office facility and people come to work. Instead of coming to work out how to create things for cell phones, they go after banks because that’s where the money is"
Calvert tells us, for example, it’s not just that these organisations are getting large and sophisticated, it’s that they run themselves like modern profit-oriented businesses, with weekly targets, commission-based renumeration and strategy meetings. And just like modern corporations, they’re competitively minded and fearful of challenges to their marketshare. The only difference really is that instead of running enterprises which add value to society, their enterprises destroy it. They don’t contribute to the system. They take from it and never put back.
http://ftalphaville.ft.com/2015/11/03/2143644/the-die-hard-risk-in-your-bank-account/