You're reading from IoT and OT Security Handbook

Product typeBook

Published inMar 2023

PublisherPackt

ISBN-139781804619803

Edition1st Edition

Concepts

Cybersecurity

Authors (2):

Smita Jain

Vasantha Lakshmi

View More author details

How layers disrupt security when not managed well

Grouping similar systems together to ensure we balance both performance and security is the key goal of the Purdue model. We have learned so far that segmentation and isolation are critical in ensuring security.

We are also clear on the benefits the convergence of IT and OT has brought to the industry. However, it has brought along with it attacks once only aimed at enterprises or IT now aimed toward OT assets as well. Every device is deemed mission critical as an attack on a front-line device or workstation or engineering system can lead to an attack on OT systems. This not only affects the business, revenue, and reputation but also human life, depending on the type of OT infrastructure.

Here is a scenario about the reconnaissance activity happening for TCP port 502. These activities not only have increased in the recent past but also, if successful, can issue harmful commands to OT devices.

TCP port 502 is commonly used in...

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IoT and OT Security Handbook

Published in: Mar 2023Publisher: PacktISBN-13: 9781804619803

Authors (2)

Smita Jain

Business enabler and risk management focused, Smita has a unique and globally-experienced approach to Information Security, Data Privacy, IT, OT-IoT, and Digital Transformation. Her hallmarks include transformative vision casting and strategy setting, operational and organizational excellence, and a risk-based approach to enterprise enablement. Recognized thought leader in the transformation process, re-envisioning and establishing organizational cadence and culture. With an established track record of effectively working across various industries. A cybersecurity consultant, strategist, mentor to organizations about the ever-changing cybersecurity landscape and helping them build a dynamic cybersecurity program.
Read more about Smita Jain

Vasantha Lakshmi

Vasantha Lakshmi works at Microsoft India as a Technology Specialist and as previously a Program Manager. She holds Certified Information System Security Professional (CISSP) certification which aids in aligning with the industry standard of security. She has been working on various security products for the last Seven years. She has more than twelve years of experience working as an architect of end-to-end cybersecurity solutions(device, data, apps, O365, identity etc.) for Microsoft 365. Prosci Certified Change Practitioner certification aids in her journey to digitally transform organisations. She holds many certifications such as M365 Enterprise Administrator Expert, M365 Desktop Administrator Associate, SC-200, SC-300, MS-500.
Read more about Vasantha Lakshmi

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