Book Image

Network Security Strategies

By : Aditya Mukherjee
Book Image

Network Security Strategies

By: Aditya Mukherjee

Overview of this book

With advanced cyber attacks severely impacting industry giants and the constantly evolving threat landscape, organizations are adopting complex systems to maintain robust and secure environments. Network Security Strategies will help you get well-versed with the tools and techniques required to protect any network environment against modern cyber threats. You’ll understand how to identify security vulnerabilities across the network and how to effectively use a variety of network security techniques and platforms. Next, the book will show you how to design a robust network that provides top-notch security to protect against traditional and new evolving attacks. With the help of detailed solutions and explanations, you'll be able to monitor networks skillfully and identify potential risks. Finally, the book will cover topics relating to thought leadership and the management aspects of network security. By the end of this network security book, you'll be well-versed in defending your network from threats and be able to consistently maintain operational efficiency, security, and privacy in your environment.
Table of Contents (15 chapters)
1
Section 1: Network Security Concepts, Threats, and Vulnerabilities
5
Section 2: Network Security Testing and Auditing
10
Section 3: Threat Management and Proactive Security Operations

Exploiting VoIP networks and defense mechanisms

VoIP is a digital communication medium used to exchange voice and multimedia content over an Internet Protocol (IP). VoIP has traditionally been used to connect to the Private Branch Exchange (PBX), which is a private telephone network used within a company or organization. However, the term is now being used to refer to IP telephony. With the increasingly widespread usage of VoIP in personal and professional engagements, it has gained the attention of threat actors and security researchers.

In this section, we will discuss some of the common threat vectors that impact VoIP and the defense mechanisms that can be implemented to mitigate those threats.

VoIP threat landscape

VoIP is an amalgamation of different technologies that form the platform that's used to deliver voice interaction capabilities over the internet, including IM applications, VoIP phones, and other such services.

The following diagram shows the framework of a corporate...