Re: The sentence seems a bit light
As part of a hacker group, my guess is he cut a deal to sell out his partners in crime.
But even if Albayrak was a loner and his "group" was a mere fantasy, I'm sure the NCU won't treat it as such, because today's "everything is terrorism" paranoid approach to criminal investigation will ensure he becomes a permanent addition to their watchlist.
Of course, in order for the NCU to have something to watch, useful or otherwise, Albayrak has to be cut loose.
So in reality this sentence is more sinister than it first appears, although in fairness Albayrak only has himself to blame.