I think that means "he left immediately - for confidentiality issues", rather than "he was fired/left for confidentiality issues, and left immediately". Its common to see employees that leave a big company, leave immediately (rather than hanging around the normal 4 weeks or so). I wonder if he has a great big non-competitive clause on him (guess its less of an issue for sales, rather than dev people).
Gesta Non Verba
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