Visa's 24/7 war room takes on global cybercriminals
In the heart of Data Center Alley - a patch of suburban Washington where much of the world's internet traffic flows - Visa operates its global fraud command center. The numbers that the payments giant grapples with are enormous. Every year, $15 trillion flows through Visa's networks, representing roughly 15 percent of the world's economy. And bad actors constantly try to syphon off some of