It's a long read (and pretty good at that), and I only just now saw your remark... There is not a single phrase that really sums it up: The report covers a lot of time and many facets, making it hard to pick "that one phrase". Maybe simply pick another part of the title?

The Mirai Confessions: Three Young Hackers [...] Tell Their Story

(yes, not really neutral, but it drops the monster-bait)