Oh, whoops? Bruce looks a little abashed as he sits back and tries to figure out where to start.

"Um... Yes? It's not really in my nature to go around exposing peoples' secret identities. And they told me in confidence." As did a few others, and is he supposed to tell Tony about them now? "One of them actually messaged me the other day to ask for my help in setting him up with some blood donors, which is why I know I can help you like this too."

And he'll smile to hopefully smooth that over, but smoothing things over is more Tony's area than Bruce's.