Milo Goodrich learned from Zong Yu that his opponent wasn't around, so he quickly started tracking her movements.
But five minutes later, he shook his head at Zong Yu and said in fluent English, "I didn't break into the Chinese system, and I didn't find out if she's on the list for this training. The system over there is really tough. Not only didn't I find her, but I couldn't find the entire list of participants for the training, and I couldn't even locate their training area. When I tried to get in just now, they used a trace-back system. Luckily, I got out fast, otherwise, I might've been caught."
Hacking a national AF Department system is completely different from hacking other companies. If he got caught by the AF's trace-back system, he'd be looking at a prison sentence.
So, once detected, it was impossible for him to try hacking again.
