Book Image

Threat Modeling

By : Adam Shostack
Book Image

Threat Modeling

By: Adam Shostack

Overview of this book

As more software is delivered on the Internet or operates on Internet-connected devices, the design of secure software is critical. This book will give you the confidence to design secure software products and systems and test their designs against threats. This book is the only security book to be chosen as a Dr. Dobbs Jolt Award Finalist since Bruce Schneier?s Secrets and Lies and Applied Cryptography! The book starts with an introduction to threat modeling and focuses on the key new skills that you'll need to threat model and lays out a methodology that's designed for people who are new to threat modeling. Next, you?ll explore approaches to find threats and study the advantages and disadvantages of each approach. Moving ahead, you?ll manage threats and learn about the activities involved in threat modeling. You?ll also focus on threat modeling of specific technologies and find out tricky areas and learn to address them. Towards the end, you?ll shift your attention to the future of threat modeling and its approaches in your organization. By the end of this book, you?ll be able to use threat modeling in the security development lifecycle and in the overall software and systems design processes.
Table of Contents (15 chapters)
Free Chapter
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Common Answers to “What's Your Threat Model?”

The question “What's your threat model?” can help you quickly express who or what you're worried about. Some typical answers include the following:

  • Someone with user-level access to the machine
  • Someone with admin-level access to the machine
  • Someone with physical access to a machine or site

Network Attackers

Attackers that are in a good position to attack via the network include the following:

  • Eve or Mallory
    • Using available software
    • Creating new software
  • Your ISP
  • Your cloud provider, or someone who has compromised them
  • The coffee shop or hotel network
  • The Mukhbarat or the NSA
  • A compromised switch or router
  • The node at the other end of a connection
  • A trusted node that's been compromised

Physical Attackers

This section considers those physically attacking a technical system, not those attacking people. Examples include the following:

  • Possession of a machine for unlimited time
    • A thief...