Ianto may be chatty, but he knows how to take a direction when he's given one, especially when there's potential danger around the corner. Well, they look like dots on the screen, but he's willing to bet that those dots correspond with the voices heard faintly from just beyond, and voices spell out trouble.

He glances between the device in the other man's hand and John himself. Right, stay quiet. Don't get caught. He can do that. It's just...

"You need to tell me what's going on here," he whispers, fiercely. "Who are those people? Is there a chance that they're going to find us?"