Deepinfo vs. Microsoft Defender EASM

Compare the Inputs, Outputs and Billing.

Both start from assets you already know and expand from there. What they find, what comes with it and how you pay for it differ.

Deepinfo and Microsoft Defender EASM compared feature by feature
Capability	Deepinfo	Defender EASM
The basics
Discovery	From a seed, with subdomain enumeration and reverse IP, MX, NS and WHOIS pivots across Deepinfo’s index	From discovery seeds, recursing through observed connections in Microsoft’s internet data
Asset types	Domains, subdomains and IP addresses	Domains, hosts, IP blocks, ASNs, email contacts and WHOIS organizations
Scanning	All layers of each asset, from WHOIS to TCP and UDP ports, with history	Web components, certificates, domain records and open ports
Where it runs	The Deepinfo Platform, with a REST API	An Azure resource in your subscription
Billing	Priced by the scope you monitor	Per approved billable asset, through Azure
Ranking and compliance
Vulnerability rankingPer CVE	CVSS, EPSS and CISA KEV side by side	High, medium and low priorities
Known exploited vulnerabilities	CISA KEV status on every CVE	CISA known exploits dashboard
Compliance views	Each issue classified against compliance frameworks	GDPR, OWASP Top 10 and CWE Top 25 dashboards
Beyond the attack surface
Breached emails and infostealer devices	Yes	Not part of Defender EASM
Lookalike domain monitoring	Typos, other extensions and confusable letters	Not part of Defender EASM
Vendor scanning on your own scale	Portfolios, same engine and score	Not a dedicated workflow
Bulk internet dataAll domains, all subdomains, daily changes	API and CSV or JSON feeds	Not part of Defender EASM
Getting data out
Exports	REST API, notifications, scheduled PDF reports	REST API (preview), Log Analytics and Azure Data Explorer connections, CSV

Last reviewed: May 2, 2026. Defender EASM rows reflect Microsoft’s public documentation at that date; confirm current capabilities with Microsoft. Product names are trademarks of their owners; Deepinfo is not affiliated with or endorsed by Microsoft.

Where Defender EASM Is Strong.

Inside a Microsoft shop, it is the short path.

Defender EASM is provisioned as an Azure resource, billed through your Azure agreement and exported to Log Analytics and Azure Data Explorer, where Microsoft Sentinel and the rest of the Defender stack can use it. A first resource starts with a 30-day free trial.

Its discovery draws on internet data Microsoft built up with RiskIQ, which it acquired in 2021.

Where Deepinfo Is Strong.

Run a demo on the seeds you already use in Defender EASM and check each one.

Breadth

All Exposure Areas on One Platform

Attack surface, breach and infostealer data, lookalike domains and vendor scanning share one platform, one set of notifications and reports, and one API. You do not assemble them from separate products.

Platform

Prioritization

Exploitation Signal on Every CVE

Each CVE carries CVSS, EPSS and its CISA KEV status side by side, plus CWE mapped to OWASP Top 10 2021. The queue starts with what attackers are most likely to use.

Scoring

Independence

No Cloud Commitment

Deepinfo runs outside any cloud subscription. Findings leave through the REST API, notifications and scheduled reports, so your team routes them into the tools it already runs.

Integrations

Query the Index Behind the Platform.

The index that drives discovery also answers your questions. One call returns all domains that use a given mail server; another returns the domains registered with the same WHOIS email.

Bulk feeds deliver the full domain and subdomain lists, plus daily changes, as CSV or JSON files.

Reverse MX API

Request

Reverse MX

curl "https://api.deepinfo.com/v1/discovery/reverse-mx?mx=mail.acme.example" \
  -H "apikey: YOUR_API_KEY"

Response

200 OK · application/json

{
  "page": 1,
  "page_size": 25,
  "result_count": 3,
  "results": [
    { "punycode": "acme.example",
      "dns": { "mx": { "mail_servers": ["mail.acme.example"] } } },
    { "punycode": "acme-group.example",
      "dns": { "mx": { "mail_servers": ["mail.acme.example"] } } },
    { "punycode": "acme-careers.example",
      "dns": { "mx": { "mail_servers": ["mail.acme.example"] } } }
  ]
}

Teams That Run Deepinfo on Their Terms.

Cybersecurity A cybersecurity ratings provider Builds its own external ratings product on Deepinfo data, through the API and feeds. Read Industrial An industrial conglomerate 30+ subsidiary brands monitored as separate portfolios on one platform. Read Telecommunications A national telecom operator Continuous monitoring across tens of thousands of public-facing assets. Read

What Buyers Ask About Both.

Can we use Deepinfo if we run the Microsoft security stack?

Yes. Deepinfo does not depend on any cloud or SIEM vendor. Findings and data are available through the REST API, notifications and scheduled reports, and the integrations page lists current connection options.

How does pricing differ?

Defender EASM is billed through Azure for each approved billable asset. Deepinfo is priced by the scope you monitor across the modules you use; see pricing or ask us for a scoped quote.

What does Deepinfo add beyond attack surface management?

Breached employee emails and infostealer-compromised devices, lookalike domain monitoring, vendor scanning on the same scale as your surface, and direct access to the underlying index through APIs and bulk feeds.

Can the two run side by side?

Yes. Defender EASM can keep exporting to Log Analytics and Azure Data Explorer for Microsoft Sentinel, while Deepinfo adds breach data, lookalike domains, vendor scanning and the index itself. Run both on the same seeds to see where their inventories differ.

Which compliance frameworks does Deepinfo classify issues against?

OWASP Top 10 2021, PCI DSS 4.0, PCI DSS 3.2, HIPAA, CWE, CAPEC and WASC. Defender EASM offers GDPR, OWASP Top 10 and CWE Top 25 dashboards.

Run Both on the Same Seeds.

Point Deepinfo at the domains you already monitor and compare what each one finds. Book a working demo.

Request demo