There's a lengthier pause this time, not spent catching on, but on actually steeping in understanding.

"You're an AI." Possibly a VI, but considering that initial train of thought's an insult in one direction versus the other (they had omnics in Los Muertos; she's seen housed consciousness in all sorts of forms) Sombra opts for the more impressive assumption.

It makes sense to her, then, those flickering little streams of code coursing across what would be Cortana's skin.

"Did the Legion create you?"

Are they spying on her? She wouldn't blame them if they were, but...shit if that doesn't put a damper on her plans.