What is KRITIS and who does it affect? 

In Germany, special regulations apply to operators of critical infrastructures under the Federal Office for Information Security / Bundesamt für Sicherheit in der Informationstechnik (BSI) Act. But who counts as an operator and when are infrastructures classified as critical?

The case for flat networks

Flat is trendy.  Flat rates, flat hierarchies, flat iron steaks and even a flat earth, but a flat network?  That is a real no-go nowadays and already for a long time.  Anyone in the business of enterprise network design knows by that a flat network design is just begging for trouble at many levels and layers.