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I would challenge whether a CISO needs an MBA degree. If you look at the IT role that arguably would benefit most from an MBA, the CIO, probably less than 20% have one. 

Boston University used to do a 'Technology Executives mini MBA' short course and I know many CIOs and other IT leaders who did it. Unfortunately they stopped it about two years ago. You might be better off finding something similar via EdX or Coursera.

I'd argue that this is a great use of an Online MBA program. Of course, an IT professional doesn't necessarily *need* an MBA, but it can come in handy if they want to swing into more general management oriented roles (or IT roles with more leadership aspects). 

Bradford is the reasonable choice here. I'd imagine it has a better / more relevant network for you, but do some due diligence and take a look at the alumni footprints of each in your area using LinkedIn.