SPOILER ALERT
The extremely skilled and elusive hacker which they're investigating, the one that has been plaguing/blackmailing corporations for 5 years, turns out to be mostly* an illusion. The corporations and ruling political party leadership worked together in a scheme to create fake cyber attacks, get them highly publicized, and then profit from government relief/bailout money. Regular people believe someone is terrorizing the country's multinational companies, when in reality, it's just a racket.
*The legendary hacker is actually out there, but their actual role in the story is somewhat of a plot twist.