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ASM in the age of CTEM

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June 24, 2025

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ASM in the age of CTEM

Download Searchlight Cyber's ebook on building a successful Attack Surface Management program in the age of Continuous Threat Exposure Management.

What's in the book

In this ebook, written by MJ Kaufmann, co-author of O’Reilly’s Attack Surface Management book, and Michael Gianarakis, Searchlight’s SVP of ASM, we cover everything you need to know about building a mature ASM program, including:

  • The challenges of defending ‘borderless perimeters’
  • How a CTEM approach can shift away from alert fatigue
  • The natural evolution of ASM into CTEM – from discovery to exposure reduction
  • A self-assessment for identifying your org’s CTEM maturity

How this book benefits your organization

This ebook is essential for security practitioners and anyone responsible for protecting digital assets. If you’re looking to gain visibility into your organization’s external attack surface, understand evolving threats, and implement proactive, CTEM-aligned security measures, this guide is for you.

Learn why a new approach to ASM is needed

Most ASM tools underdeliver by focusing solely on asset discovery without verifying or prioritizing risks, leading to an overwhelming amount of unprioritized data for security professionals to deal with. This results in too much noise and too little signal.

That’s why a modern approach is needed. That’s what we explore in this book.

Building a CTEM program without first investing in your ASM is like trying to build a skyscraper on sand. The structure might take shape, but it won't hold.

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