Get wind of

[T]he secret was still a secret, except that you had got wind of it.

"It's no easy matter," said Inspector Weymouth, "to patrol the vicinity of John Ki's Joy-Shop without their getting wind of it."

He asks that I don't identify his name and profession, saying he doesn't want colleagues to get wind of his habits.

The ensuing snarknado also seemed to goose the TV ratings. Hundreds of thousands of viewers switched on the movie after it began, suggesting that they’d gotten wind through Twitter of the bananas spectacle that was unfolding.

Fearing that if Mr. Altman got wind of their plan he would marshal his network against them, they acted quickly and secretly.