Review · Logged 2026-10-18

CardinalOps review: measuring MITRE ATT&CK coverage in your detection stack

Maps the detections already running in your SIEM and EDR to ATT&CK, scores rule health and fills gaps from curated rules. Cribl announced in July 2026 that it is acquiring CardinalOps.

#75.60 / 10Best for measuring ATT&CK coverage

Editorial assessment · From vendor product pages, docs and announcements · Updated 2026-10-21

What does CardinalOps do?

CardinalOps describes 'agentic detection engineering' with 'unified visibility of detection across SIEM & EDR, mapped to MITRE techniques'. It offers heatmap views of current coverage that can be filtered by APTs or threat groups, plus rule health and coverage scores.

It extends coverage from '8,000+ curated detection rules' delivered in native SIEM syntax or EDR formats, connects through native APIs and supports CI/CD. Threat intelligence is operationalized by mapping it to TTPs, and agents are described as accelerating threat hunting.

On 14 July 2026 Cribl announced it is acquiring CardinalOps. It is also available on CrowdStrike Marketplace.

cardinalops.com now redirects to cribl.io; on 14 Jul 2026 Cribl announced it is acquiring CardinalOps.

Key facts

Key facts about CardinalOps
Category	Detection engineering
Hunting approach	Secondary; agents described as accelerating threat hunting
Data access	Native API connections to the SIEM and EDR a team runs; a separate data store is not described
Platforms named publicly	Named SIEMs are not listed on the pages reviewed; CrowdStrike Marketplace listing
ATT&CK claim	Coverage heatmaps and scores by technique; filter by APT or threat group
Detection workflow	CI/CD support; rules in native SIEM or EDR syntax; rule health scores
Deployment	Native API connections; CrowdStrike Marketplace
Pricing	Not published
Company	Cribl announced it is acquiring CardinalOps (14 July 2026)

Source: cardinalops.com · Read 2026-10-18 · cardinalops.com/platform · Read 2026-10-18 · cardinalops.com/newsroom · Read 2026-10-18 · Cribl acquisition announcement, 14 Jul 2026 · Read 2026-10-21 · Source dates shown above

Last reviewed 2026-10-21

How does CardinalOps score?

5.60 / 10

Hunt automation

25%4 / 10

Agents are described as accelerating threat hunting, but hunting is secondary to detection posture; hunts that run on their own are not described.

Works across existing SIEM and data lakes

20%5 / 10

Works through native APIs on the SIEM and EDR a team runs; it is not described as a hunting layer across data lakes, cloud logs or other sources.

Analyst effort saved

15%6 / 10

Rule health scores flag rules that need attention, and coverage gaps are filled from 8,000+ curated rules in native syntax.

ATT&CK coverage evidence

10%10 / 10

ATT&CK coverage is the core product: detections mapped to techniques, with heatmaps and coverage scores filterable by APT or threat group.

Highest in field

Detection-as-code workflow

10%8 / 10

CI/CD support, with rules delivered in native SIEM syntax or EDR formats.

Deployment

10%7 / 10

Connects through native APIs and is listed on CrowdStrike Marketplace; Cribl announced it is acquiring CardinalOps in July 2026; no published time-to-value figure.

Pricing transparency

10%2 / 10

No public price.

Where CardinalOps scores lower

Hunt automation (4 of 10): hunting is a supporting feature, not the core product. Mars Security and Nebulock score 9.
Works across existing SIEM and data lakes (5 of 10): works inside the SIEM and EDR through their APIs rather than hunting across sources.
Pricing transparency (2 of 10): no public price.

What does CardinalOps publish about ATT&CK coverage?

CardinalOps maps detections to ATT&CK techniques and shows coverage heatmaps, but its public pages do not name which tactics are covered for a given customer, which is expected: coverage depends on each customer's rules.

Who should shortlist CardinalOps?

Good fit if

You need to know what your deployed detections cover against ATT&CK, and where the gaps are.
You want curated rules in your SIEM's native syntax.

Look elsewhere if

You want hunts to run continuously on their own (Mars Security, Nebulock).

How does CardinalOps compare?

Frequently asked questions

Who owns CardinalOps?

Cribl announced it is acquiring CardinalOps on 14 July 2026; the announcement does not say the deal has closed.

Does CardinalOps write detections?

It fills coverage gaps from more than 8,000 curated rules in native SIEM syntax or EDR formats, and scores the health of rules already deployed.

Is CardinalOps a threat hunting tool?

Only in part. Its agents are described as accelerating threat hunting, but the product centers on detection coverage, which is why it scores 4 of 10 on hunt automation here.

Visit cardinalops.com