[kyrra]

It's not clear in the post; why was Krebs targeted by this criminal?

[webkike]

It may simply be because Krebs has a history of unveiling important members of the cyber crime business.

[jacquesm]

Or it may simply be that 'owning' Krebs has the effect of boosting some stupid kids' standing.

[DaveWalk]

And that Krebs finds his way into many criminal forums, one of which the accused was running.

[snowwrestler]

It doesn't look like Krebs knows.