Book Image

Incident Response in the Age of Cloud

By : Dr. Erdal Ozkaya
Book Image

Incident Response in the Age of Cloud

By: Dr. Erdal Ozkaya

Overview of this book

Cybercriminals are always in search of new methods to infiltrate systems. Quickly responding to an incident will help organizations minimize losses, decrease vulnerabilities, and rebuild services and processes. In the wake of the COVID-19 pandemic, with most organizations gravitating towards remote working and cloud computing, this book uses frameworks such as MITRE ATT&CK® and the SANS IR model to assess security risks. The book begins by introducing you to the cybersecurity landscape and explaining why IR matters. You will understand the evolution of IR, current challenges, key metrics, and the composition of an IR team, along with an array of methods and tools used in an effective IR process. You will then learn how to apply these strategies, with discussions on incident alerting, handling, investigation, recovery, and reporting. Further, you will cover governing IR on multiple platforms and sharing cyber threat intelligence and the procedures involved in IR in the cloud. Finally, the book concludes with an “Ask the Experts” chapter wherein industry experts have provided their perspective on diverse topics in the IR sphere. By the end of this book, you should become proficient at building and applying IR strategies pre-emptively and confidently.
Table of Contents (18 chapters)
16
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17
Index

Cloud service models

The cloud has three common service models, all of which approach security differently. These were discussed briefly in Chapter 9, Incident Response on Multiple Platforms, but as a refresher, these models consist of:

  • Software as a Service (SaaS): The vendor provides all resources on the cloud including the apps used by the client. Furthermore, the vendor controls the security aspects of the apps.
  • Platform as a Service (PaaS): The vendor provides a complete runtime environment, which can be composed of storage, servers, and network bandwidth, that can be used to deploy anything from simple, cloud-based apps to sophisticated, cloud-enabled enterprise applications. The vendor manages everything, but you need to manage the applications and services that you develop. PaaS allows you to avoid buying and managing software licenses, underlying application infrastructure and middleware, container orchestrators, development tools, and other resources.
  • ...