You can charitably read it as "MBA from Stanford, with a focus on computer science-related stuff," or maybe "MBA and a bachelor's in CS from Stanford." Or you could assume that it's an MS in CS that was 'autocorrected' to MBA.

But the way it's phrased and worded... at best, it's the kind of really bad typo that shows rank incompetence; at worst, it's outright fabrication that is actively lying about the credentials; and what I think most likely, it's obfuscation that's relying on credentialism to impart an imprimatur of credibility that is wholly undeserved (i.e. "I got an unrelated degree at Stanford, but it's Stanford and how could anyone who goes there be bad at CS?").