Avoiding Dark Age Cybersecurity Thinking
There are several complications with the way we think about security and handle it today, but it seems to me that they may all be followed, at least in part, back to one fundamental mistake: we use a bad model when planning on security, especially computer and network security, best cyber security courses is the one which I’ll suggest you to consider on priority.
Motte and Bailey may be the title of a design for building castles that goes back to the days of Bill, the Conqueror, a millennium ago. Typically the bailey is a courtyard surrounded by a wall or palisade. It is built after the motte, a bar mound, usually a natural hill that was artificially enhanced, causing a surrounding throw away. The idea is that the multitude sets the fort well apart from the surrounding country and that the palisade atop it creates a secure zone within it.
Over the years, the ditch around the base of the motte improved into the water-filled moat we link with castles today.
The "Motte and Bailey" type of security suggests to us that everything we are defending is defined from the rest of the world and alongside its boundary we have built a protective wall, within which there is a zone of safety for people and ours. It’s rather easy to view how this model applies to security mechanisms. My bill on a multi-user method is set separated from everyone else’s and is secured with a username and password. My Local Spot Network (LAN) is separated from the internet at my router and protected within my firewall etc.
The Multitude and Bailey fort and the designs that grew from it, and also the roman walled city became the model after which the locations of Europe were built. As the cities grew, the condition inherent in the model, even as applied to locations, became obvious. When a metropolis was big and complex enough, once it possessed enough commerce with crackers, the view that it was safer within the palisade became less and less true.
To continue my historical metaphor, let us fast onward six or several centuries to travel to the Paris of Nicolas-Gabriel de la Reynie, the man often credited with the creation of the modern police, although what he have was a deal more than that.
By entre, it has become clear that the ultra-modern city was often less safe than the countryside around it. It was not enough to be set separated from the remainder of the country on the Île entre ma Nation or to have a wall. Commotion within the city and the potential issues that it added had to be addressed.