An hour after Nova started her attack on the Chinese internet, the government shut it down. Not only did they hit their “kill switch”, they even went so far as to physically cut the cables that connected their data centers.
Despite all of the havoc she had caused, Nova didn’t attempt to go after the civilian infrastructure systems. She knew it would cause massive casualties if she disabled the power grid, transportation system, emergency services, utilities, or even the financial market. Though there was some collateral damage done to the marketplace, as a system freeze was still costly, it was as limited as she could manage to make it.
So even though the cyberattack was definitely savage, it was specifically aimed at the Chinese government and normal people basically only had the minor inconvenience that any interruption of their internet service would cause.