ALTERNATIVES · SCORED SEPTEMBER 2026 · CROWDSTRIKE EASM ADDED 13 OCTOBER 2026
Best Microsoft Defender EASM alternatives in 2026
Quick answer
IONIX (7.70), CyCognito (7.60) and watchTowr (7.50) score higher than Microsoft Defender EASM (6.00) on our weights. Microsoft Defender EASM keeps the highest pricing transparency score in the set; every alternative scores higher on exploitability validation and remediation.
Scored September 2026 · CrowdStrike EASM added 13 October 2026 · Drawn from vendor product pages, docs and public pricing
Why do teams look for alternatives to Microsoft Defender EASM?
Microsoft Defender EASM is the most transparent way to start: a prebuilt inventory, a 30-day free trial and Azure billing. The public facts behind the usual reasons to look elsewhere: no exploitability testing is documented, remediation happens downstream after export to Log Analytics, and there is no cross-tenant resource access, including through Azure Lighthouse, which matters for groups whose subsidiaries run separate Azure tenants.
What are the best alternatives to Microsoft Defender EASM?
- IONIXRank 1 · 7.70 / 10
Best for multi-subsidiary enterprises that want mitigation, not just a list
Scores higher than Microsoft Defender EASM on: discovery, attribution, exploitability validation and remediation.
Microsoft Defender EASM scores higher on: integrations and pricing transparency.
- CyCognitoRank 2 · 7.60 / 10
Best for the fastest start from a company name
Scores higher than Microsoft Defender EASM on: discovery, attribution, exploitability validation, remediation and time to value.
Microsoft Defender EASM scores higher on: integrations and pricing transparency.
- watchTowrRank 3 · 7.50 / 10
Best for rapid reaction to emerging threats
Scores higher than Microsoft Defender EASM on: discovery, exploitability validation and remediation.
Microsoft Defender EASM scores higher on: integrations and pricing transparency.
- HadrianRank 4 · 7.10 / 10
Best for agentic exploit validation with a published test price
Scores higher than Microsoft Defender EASM on: exploitability validation and remediation.
Microsoft Defender EASM scores higher on: integrations, time to value and pricing transparency.
- Cortex XpanseRank 5 · 6.80 / 10
Best for Palo Alto Networks Cortex estates
Scores higher than Microsoft Defender EASM on: discovery, exploitability validation, remediation and integrations.
Microsoft Defender EASM scores higher on: time to value and pricing transparency.
- Tenable ASMRank 6 · 6.05 / 10
Best for teams standardizing on Tenable One
Scores higher than Microsoft Defender EASM on: exploitability validation, remediation and integrations.
Microsoft Defender EASM scores higher on: attribution, time to value and pricing transparency.
- Rapid7 Surface CommandRank 8 · 5.95 / 10
Best for combining external and internal asset inventory
Scores higher than Microsoft Defender EASM on: exploitability validation and remediation.
Microsoft Defender EASM scores higher on: discovery, attribution, time to value and pricing transparency.
- CrowdStrike EASMRank 9 · 5.90 / 10
Best for CrowdStrike Falcon estates
Scores higher than Microsoft Defender EASM on: exploitability validation and remediation.
Microsoft Defender EASM scores higher on: attribution, time to value and pricing transparency.
- Censys ASMRank 10 · 5.85 / 10
Best for internet-scan evidence and threat hunting teams
Scores higher than Microsoft Defender EASM on: exploitability validation and remediation.
Microsoft Defender EASM scores higher on: attribution, time to value and pricing transparency.
How do the top alternatives compare with Microsoft Defender EASM?
| Criterion | Weight | Microsoft Defender EASM | IONIX | CyCognito | watchTowr |
|---|---|---|---|---|---|
| Discovery of unknown assets and subsidiaries | 20% | 7 | 9 | 9 | 8 |
| Attribution accuracy and false-positive handling | 15% | 7 | 8 | 8 | 7 |
| Exploitability validation | 15% | 3 | 8 | 8 | 9 |
| Remediation and mitigation support | 20% | 4 | 9 | 7 | 9 |
| Integrations and platform reach | 10% | 8 | 7 | 7 | 7 |
| Time to value | 10% | 8 | 8 | 9 | 8 |
| Pricing transparency | 10% | 7 | 2 | 4 | 2 |
| Weighted total | 6.00 | 7.70 | 7.60 | 7.50 |
Where is Microsoft Defender EASM still better?
| Criterion | Microsoft Defender EASM score | Alternatives scoring higher | Tied | Scoring lower |
|---|---|---|---|---|
| Discovery of unknown assets and subsidiaries | 7 | 4 of 9 | 4 of 9 | 1 of 9 |
| Attribution accuracy and false-positive handling | 7 | 2 of 9 | 3 of 9 | 4 of 9 |
| Exploitability validation | 3 | 9 of 9 | 0 of 9 | 0 of 9 |
| Remediation and mitigation support | 4 | 9 of 9 | 0 of 9 | 0 of 9 |
| Integrations and platform reach | 8 | 2 of 9 | 3 of 9 | 4 of 9 |
| Time to value | 8 | 1 of 9 | 2 of 9 | 6 of 9 |
| Pricing transparency | 7 | 0 of 9 | 0 of 9 | 9 of 9 |
Microsoft Defender EASM holds or shares the top score among all ten tools on: pricing transparency.
Which alternative fits your reason for leaving?
| Reason for leaving | Consider | Why |
|---|---|---|
| You want exploitability proven | watchTowr or Hadrian | Both score 9 on exploitability validation. |
| You want remediation inside the tool | IONIX or watchTowr | Both score 9 on remediation and document WAF or edge rules. |
| Subsidiaries run separate tenants | IONIX or CyCognito | Both document attribution of assets to subsidiaries. |
| You want results from a company name alone | CyCognito | The organization's name is its only required input. |
When should you stay with Microsoft Defender EASM?
Stay with Microsoft Defender EASM when you are Azure-first and want to try before you buy. It scores 7 on pricing transparency, the highest in the set, offers a prebuilt inventory and a 30-day free trial on the first resource, and sends data to Log Analytics and Azure Data Explorer.
Frequently asked questions
What is the best alternative to Microsoft Defender EASM?
On our weights the top three alternatives are IONIX (7.70), CyCognito (7.60) and watchTowr (7.50), against 6.00 for Microsoft Defender EASM.
Which alternative is easiest to price?
Hadrian publishes a NOVA price from 1,250 euros per test excluding VAT. CyCognito publishes its pricing basis. The others in our set do not publish ASM prices.
Can Microsoft Defender EASM cover subsidiaries in other Azure tenants?
Microsoft's documentation states there is no cross-tenant resource access, including through Azure Lighthouse.