Cloak-and-dagger used in a sentence

Cloak-and-dagger in a sentence as an adjective

"We have been covered by a few big tech blogs and you've probably heard of us. "...so why the cloak-and-dagger routine?

I get the sense this is being hyped because of the cloak-and-dagger feeling engendered by the phrase 'hacker handshake', more than the flaw itself.

And perhaps I've just not seen enough of the world, but I've gotten along just fine without having to resort to cloak-and-dagger behavior everywhere I go. Sure, checkpoints happen in some places.

Now we're talking about broad-based wiretapping with entire buildings dedicated to it, operating practically in the open compared to the cloak-and-dagger stuff of yore.

Each major country has intelligence and clandestine operations which are not publicly acknowledged, but it's different between cloak-and-dagger stuff and occupying a part of neighboring country and trying to present it as if they did it to themselves.