Nor is he trying to protect the top-secret business model of one of the dozens of start-ups he is advising or has financed.
Early in his career, he was selected to build a top-secret satellite, and he's been inventing ever since.
The couple pulled off the near-impossible: a top-secret wedding.
British Dictionary definitions for top-secret
top-secret
adjective
1.
containing information whose disclosure would cause exceedingly grave damage to the nation and therefore classified as needing the highest level of secrecy and security