Book Image

Learn Azure Sentinel

By : Richard Diver, Gary Bushey
Book Image

Learn Azure Sentinel

By: Richard Diver, Gary Bushey

Overview of this book

Azure Sentinel is a Security Information and Event Management (SIEM) tool developed by Microsoft to integrate cloud security and artificial intelligence (AI). Azure Sentinel not only helps clients identify security issues in their environment, but also uses automation to help resolve these issues. With this book, you’ll implement Azure Sentinel and understand how it can help find security incidents in your environment with integrated artificial intelligence, threat analysis, and built-in and community-driven logic. This book starts with an introduction to Azure Sentinel and Log Analytics. You’ll get to grips with data collection and management, before learning how to create effective Azure Sentinel queries to detect anomalous behaviors and patterns of activity. As you make progress, you’ll understand how to develop solutions that automate the responses required to handle security incidents. Finally, you’ll grasp the latest developments in security, discover techniques to enhance your cloud security architecture, and explore how you can contribute to the security community. By the end of this book, you’ll have learned how to implement Azure Sentinel to fit your needs and be able to protect your environment from cyber threats and other security issues.
Table of Contents (22 chapters)
1
Section 1: Design and Implementation
4
Section 2: Data Connectors, Management, and Queries
9
Section 3: Security Threat Hunting
14
Section 4: Integration and Automation
17
Section 5: Operational Guidance

Playbook pricing

As mentioned in Chapter 1, Getting Started with Azure Sentinel, running an Azure Sentinel playbook is not included in the ingestion costs of Azure Sentinel or Log Analytics. It has its own separate charges that, though they may be considered small, can add up quickly.

For example, in the East US region, each logic app action that is run (and this includes things such as looking up information, extracting JSON, and sending emails) will cost $0.000025 each time it is used. There is also an additional $0.000125 charge for each standard connector. Granted, this seems pretty small, but if you write a logic app that has 100 actions with 1 connector that gets run each second of every day for a month, that one logic app would cost $3,564 each month!

Note

For more information on Azure Logic Apps pricing, go to https://azure.microsoft.com/en-us/pricing/details/logic-apps/.

Now, this is a pretty extreme example, but it serves to remind you that when designing playbooks...