In the meantime, all we can really do is button up and maintain our own operational security.

Besides, for reasons of operational security it was felt that the fewer governments involved the better.

This is in my opinion nothing more than a matter of operational security.

He said to keep it from you for operational security.

He was, though, extremely tight when it came to operational security.

Unless you need us to play a part, maintain operational security.

His men had full authority to switch cities if necessary to maintain operational security.

It can also reflect a perceived need for operational security, giving away no more information than needed.

"Reebeck, haven't you learned anything about operational security by now?"

"But I object to this unnecessary risk to our operational security."