Security Testing & Exposure Management

Microsoft Defender External Attack Surface Management

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01 / Overview

What is Microsoft Defender External Attack Surface Management?

Microsoft Defender External Attack Surface Management discovers and monitors internet-facing organisational assets.

Who is Microsoft Defender External Attack Surface Management for?

Teams evaluating software that discovers and monitors internet-facing organisational assets. Evaluate external asset discovery and attack surface inventory against the intended deployment, access controls and operating responsibilities.

02 / Capabilities

Microsoft Defender External Attack Surface Management features

The core capabilities to consider for your workflow.

  • External asset discovery
  • Attack surface inventory
  • Exposure visibility
03 / Plans & costs

Microsoft Defender External Attack Surface Management pricing

Plan availability

Service and plan pricing

Review current Microsoft pricing for the selected product, users and deployment. Include applicable subscriptions, capacity, compute, storage, requests, network transfer and supporting services; the chargeable units depend on this product.

Calculate the cost of your quote →

Free access & evaluation

Cloud credits, trials and free usage allowances have eligibility and service limits. Check current terms for the region and workload; do not assume ongoing production use is free.

04 / Buying checklist

Before you choose Microsoft Defender External Attack Surface Management

  • Which authorised applications, infrastructure, code or cloud resources need assessment?

  • Who approves testing, access, data handling, remediation and the licensed assessment scope?

  • Confirm service availability in the required region and the permissions, quotas and connected services needed for the intended deployment.

05 / Related software

Explore related software

06 / Questions answered

Microsoft Defender External Attack Surface Management FAQs

Does Microsoft Defender External Attack Surface Management have a free plan?

Cloud credits, trials and free usage allowances have eligibility and service limits. Check current terms for the region and workload; do not assume ongoing production use is free.

Who is Microsoft Defender External Attack Surface Management for?

Teams evaluating software that discovers and monitors internet-facing organisational assets. Evaluate external asset discovery and attack surface inventory against the intended deployment, access controls and operating responsibilities.

What should I compare before buying?

Check the tier that contains your essential features, confirm plan limits and compare the total quote with your own expected usage.