ALTERNATIVES

Beyond Microsoft Defender EASM: Microsoft Defender EASM alternatives for proving and fixing exposures

THE SHORT ANSWER

Microsoft Defender EASM ranks 10 of 10 at 4.70 out of 10. On our weights the highest-scoring alternatives are IONIX, watchTowr and CyCognito. The right one depends on the step you need most; each entry below lists where it scores higher than Microsoft Defender EASM and where Microsoft Defender EASM stays ahead.

By The Perimeter Desk · EASM Compared · Published 2026-10-11

Desk research from public vendor pages and documentation; vendor facts read September 2026, updated 13 October 2026. Editorial assessment; we did not test the products.

Why do buyers look beyond Microsoft Defender EASM?

No exploitability testing or compensating control is documented.
Source: Microsoft Defender EASM overview · Read 27 Sep 2026
Findings leave for Log Analytics or Azure Data Explorer before anyone acts on them.
Source: Microsoft Defender EASM: data connections · Read 27 Sep 2026
No cross-tenant resource access for organizations split across Azure tenants.
Source: Microsoft Defender EASM overview · Read 27 Sep 2026

Which alternatives score highest?

IONIX
Scores higher than Microsoft Defender EASM on: Finds the unlisted estate, Routes to an owner, Proves exploitability, Contains before the patch and Closes the loop
Microsoft Defender EASM scores higher on: Fits the enterprise stack and Buying transparency
Microsoft Defender EASM vs IONIX
watchTowr
Scores higher than Microsoft Defender EASM on: Finds the unlisted estate, Proves exploitability, Contains before the patch and Closes the loop
Microsoft Defender EASM scores higher on: Fits the enterprise stack and Buying transparency
Microsoft Defender EASM vs watchTowr
CyCognito
Scores higher than Microsoft Defender EASM on: Finds the unlisted estate, Routes to an owner, Proves exploitability and Closes the loop
Microsoft Defender EASM scores higher on: Fits the enterprise stack and Buying transparency
Microsoft Defender EASM vs CyCognito
Hadrian
Scores higher than Microsoft Defender EASM on: Proves exploitability and Closes the loop
Microsoft Defender EASM scores higher on: Fits the enterprise stack
Microsoft Defender EASM vs Hadrian
Cortex Xpanse
Scores higher than Microsoft Defender EASM on: Finds the unlisted estate, Proves exploitability, Contains before the patch, Closes the loop and Fits the enterprise stack
Microsoft Defender EASM scores higher on: Buying transparency
Microsoft Defender EASM vs Cortex Xpanse
CrowdStrike EASM
Scores higher than Microsoft Defender EASM on: Proves exploitability, Contains before the patch and Closes the loop
Microsoft Defender EASM scores higher on: Routes to an owner and Buying transparency
Microsoft Defender EASM vs CrowdStrike EASM
Tenable ASM
Scores higher than Microsoft Defender EASM on: Proves exploitability, Contains before the patch, Closes the loop and Fits the enterprise stack
Microsoft Defender EASM scores higher on: Routes to an owner and Buying transparency
Microsoft Defender EASM vs Tenable ASM
Rapid7 Surface Command
Scores higher than Microsoft Defender EASM on: Proves exploitability, Contains before the patch and Closes the loop
Microsoft Defender EASM scores higher on: Finds the unlisted estate, Routes to an owner and Buying transparency
Microsoft Defender EASM vs Rapid7 Surface Command
Censys ASM
Scores higher than Microsoft Defender EASM on: Proves exploitability and Closes the loop
Microsoft Defender EASM scores higher on: Routes to an owner and Buying transparency
Microsoft Defender EASM vs Censys ASM

When should you stay with Microsoft Defender EASM?

Stay with Microsoft Defender EASM if an Azure-billed, self-serve inventory is enough for now.

Frequently asked questions

What is the best alternative to Microsoft Defender EASM?

On our default weights it is IONIX at 8.05. If Microsoft Defender EASM's weakest criterion, contains before the patch, matters most to you, IONIX scores highest there (9/10).

Is there a cheaper alternative to Microsoft Defender EASM?

Few tools here publish prices. IONIX: AWS Marketplace, 1-month contract, cost per month: Silver Plan (monthly monitoring) $25,000; Gold Plan (weekly monitoring) $35,000; Platinum Plan (continuous monitoring) $45,000. CyCognito: Pricing basis published: total asset volume for ASM; active IPs and web applications for exposure validation. Hadrian: NOVA agentic penetration test: from 1,250 euros per test excluding VAT. Cortex Xpanse: No price from Palo Alto Networks. Tenable ASM: ASM: quote only. The rest publish no price.

Which alternative to Microsoft Defender EASM contains exposures before the patch?

IONIX: Agentic mitigation invokes compensating controls: WAF rules within the 12-hour SLA; Active Protection reclaims hijackable assets. watchTowr: Active Defense pushes rules to seven named edge vendors. Cortex Xpanse: Active Response automated playbooks.

Why do buyers look beyond Microsoft Defender EASM?

Which alternatives score highest?

When should you stay with Microsoft Defender EASM?

Frequently asked questions

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