Mr White is a career criminal, his real name is unkown. He was hired by another megacorporation to plan the heist on CyberSolutions in Android: Infiltration.
Quotes:
"Today I shall be...Mr White"
"The old-timers love to go on about how the world has changed, but crime has not. They're wrong about the second part. Crime isn't about money anymore, at least for those pursuing higher aims than a hand-to-mouth existence. It's about information. the right data can buy you anything."