1) Derail the conversation 2) Find out ways to further cloak their footprint
IMO if you've worked in the field, you know it's a dumb question meant to invoke something.
"Look! We've succeeded! We've dragged out 'w0z_' and have identified him as a possible (x)!"
Sadly, I am a nobody who happened to see DPRK not tunnel to a VPN.
Really? What does it take to sprinkle North Korea over my code? Is having the North Korean equivalent of JIS in strings enough? I mean, how could there possibly there be any footprint of anything. Does gcc leak info into the binary that my Debian system does not have in the first place? You need to get these guys when they are bragging to their friends. You can't look on the trails they leave behind ...
A lot of cyber security smells like bullet forensics.
Back to the subject at hand, and taking a more general view, trusting a big Pentagon-contractor [1] (and not only) such as Alphabet on the subject of other countries' cyber-attacks against the US (and its Western allies) is just futile.
[1] https://www.reuters.com/technology/pentagon-awards-9-bln-clo...