Comment by jojomodding

So apparently some CCC-connected hackers already unmasked one of them years ago (as reported in the update, which could have also just linked to the talk here: https://media.ccc.de/v/37c3-12134-hirne_hacken_hackback_edit... )

Makes you wonder if the investigators discovered this independently, or decided to maybe ask the hackers already involved in defending against them for help...