In the recent Ant-man movie,
when Dr. Pym has been invited to Pym Tech and Darren is about to sell the suit to Hydra, it is revealed that Cross knew about their plan to steal the Yellowjacket. We hear Darren say, "It's not easy to successfully infiltrate an Avengers facility. Thankfully, word travels fast." (emphasis mine)
How did Darren know this and were the viewers supposed to "get it"? Is there a leak?