Network Security | Defense in Depth

Network Security | Defense in Depth
There are many aspects to the security of a system, but the Defence in Depth strategy guides them all.

There is no one thing that provides full security for a system. All too often people think they’re secure, as they have a firewall. Unfortunately that’s not true. Firewalls are important, but they’re not where security begins and ends.

Cyber Security needs to be layered. Consider an example of a virus being sent through email. Will the firewall pick it up? Possibly not. We rely on email security systems, and antivirus software on the workstations. If one part of this fails, there’s still another part to rely on.

Also see:
https://www.sans.org/reading-room/whi...
https://en.wikipedia.org/wiki/Defense...)


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Overview of this video:

0:00 Introduction

1:02 Definition

2:23 Layers of Security


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