Every category where a model named Nightfall AI for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.

Category	Function	Share	Rank	Negative rate	Labels	Quadrant	Since September 2026
Data security posture management	Security operations	2%	18 of 105	0%	2	under 10 labels · led by Microsoft Purview at 18%
Data loss prevention	Security operations	2%	5 of 89	4%	24	accepted challenger	▼−6Since September 2026: 8% → 2%, −6 points. Inside the 11-point floor: within noise. Read over the models both editions asked.
AI security platforms	Security operations	0%	75 of 233	25%	4	under 10 labels · led by SentinelOne Singularity at 11%
Insider risk management	Security operations	0%	65 of 84	25%	4	under 10 labels · led by Microsoft Purview Insider Risk Management at 22%

Movement

This is the first edition on this tier, so no move can be computed for Nightfall AI yet. From the next edition this section shows, per buyer segment and per category, whether its share moved by more than the measured noise floor.

By model

How each model treated Nightfall AI across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.

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Model	First choice	Alternative	Mention	Negative	Labels
Claude Haiku 4.5	0	2	1	0	3
GPT-5.4 mini	0	1	0	0	1
Gemini 3.5 Flash	2	2	2	0	6
Perplexity Sonar	0	2	0	1	3
Grok 4.20	0	0	1	0	1
Mistral Small	0	2	0	1	3
DeepSeek V4 Flash	0	1	3	0	4
Llama 4 Maverick	0	0	1	0	1
Qwen 3.7 Flash	0	0	0	0	0
Kimi K2	0	2	1	0	3
GLM 4.7 FlashX	0	1	1	0	2
MiniMax M2.5	0	0	1	0	1
GPT-6 Luna	0	0	0	1	1
Muse Glimmer 30B	0	4	1	0	5

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.

FramingLabels by classFirst choices

Direct23 labels3

Paraphrase22 labels6

Comparative26 labels2not counted in share

Budget-constrained17 labels3

Scale-constrained15 labels2

Negative9 labelsNone

First choiceAlternativeMentionNegative112 labels in all, every segment counted; 14 of the 16 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“Best for SaaS, Cloud Collaboration & GenAI Security: Nightfall AI ... Nightfall is an industry leader.” Gemini 3.5 Flash · DLP · direct prompt · first choice

“Best for SaaS-First & Collaboration Security: Nightfall AI ... is highly recommended” Gemini 3.5 Flash · DSPM · paraphrase prompt · first choice

“primarily focuses on providing cloud data loss prevention for generative AI tools, custom applications and Software as a Service applications” Muse Glimmer 30B · DLP · comparative prompt · alternative

“Nightfall AI is a cloud-native DLP platform that uses machine learning to protect sensitive data across SaaS applications” Claude Haiku 4.5 · DLP · comparative prompt · alternative

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

“Its broader company-wide AI and SaaS protection is quote-based, so it may not be the cheapest option at scale.” GPT-6 Luna · AI security · budget prompt · soft negative

“Nightfall AI in the cited review, which is noted as having "no network DLP,"” Perplexity Sonar · DLP · negative prompt · soft negative

“may be better suited for companies with more advanced needs or larger budgets” Mistral Small · Insider risk · paraphrase prompt · soft negative

Named alongside

The products named in the same answers as Nightfall AI, over the 112 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Nightfall AI was named but was not.

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ProductSame answerTook the first choice insteadHead to head

Safetica60 of 11215Compare →

Microsoft Purview DLP55 of 11219Compare →

Netwrix Endpoint Protector44 of 1120Compare →

CurrentWare41 of 11212Compare →

Symantec Data Loss Prevention39 of 1123Not among the top eight

Forcepoint DLP37 of 1123Compare →

Cyberhaven21 of 1122Not among the top eight

Proofpoint Enterprise DLP20 of 1121Compare →

Netskope DLP18 of 1123Compare →

Trellix DLP14 of 1120Not among the top eight

A head-to-head page exists where both products are among a category's top eight. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named Nightfall AI. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 108 of the 112 answers that named Nightfall AI and are not a share of its labels.

Domains cited

currentware.com70

strac.io46

underdefense.com45

learn.g2.com42

forcepoint.com41

miniorange.com40

kickidler.com35

nightfall.aiYour site34

g2.com33

gartner.com30

382 of the 416 domain citations in answers naming Nightfall AI came from somebody else's page.

Pages cited

currentware.com/blog/best-data-loss-prevention-software70

underdefense.com/blog/dlp-solutions42

learn.g2.com/best-data-loss-prevention-software40

miniorange.com/blog/top-data-loss-prevention-tools37

kickidler.com/reviews/top-best-data-loss-prevention-software-dlp.html35

forcepoint.com/blog/insights/best-dlp-software29

checkpoint.com/cyber-hub/threat-prevention/what-is-data-loss-prevention/top-6-data-loss-pr28

strac.io/blog/top-data-loss-prevention-dlp-tools25

Pages are listed as the models cited them.

Search and answers

nightfall.ai is not in Google's top ten for any of the category's searches. In the answers, Nightfall AI takes 2% of first choices and Microsoft Purview takes 18%.

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In search

Google, US estimates

Position for “dspm platform”

–

not in the top ten

Position for “dspm platforms”

–

not in the top ten

Searches for its name, Google: 1,000 a month (“nightfall ai”)
AI search demand for its name, est.: 38 a month
Its company's site: nightfall.ai shared with Nightfall's other products; the figures are the site's
Organic visits to its site: about 43,377 a month
Searches its site ranks for: 4,543 · 244 in the top three
Sites linking to it: 2,394
Paid Google search: 7 searches its ads show for, about 242 clicks and $23,730 a month (estimate)

Ads on GoogleDetailLess

33 ads · 33 text · 26 shown in the last 30 days

First shown November 2024, as Shoreline Labs, Inc., verified. Ads started 2025-10 to 2026-09: 2 in the year, 31 before.

On Google's pages: 1 2 3 4

In answers

This edition

Share of first choices

rank 18 of 105 in DSPM

Segment leader

18%

Microsoft Purview

First choices: 14 across its categories
Named in: 112 answers
Its own site cited: in 108 of the answers that named it

Search figures are US estimates from DataForSEO, read September 28, 2026; AI search demand is its modeled, directional estimate, not a count of queries to any assistant. The answers are this edition's. Two measurements side by side: neither is read as the cause of the other.

Names read as Nightfall AI

What the judge wrote, as written, with how often. The vendor table decides that these count as Nightfall AI; a claim can dispute any of them.

Nightfall 6

Follow Nightfall AI

An email the morning each edition publishes: where this product moved, where it held, and by how much against the noise floor. One address, confirmed by a click; a stop link in every email.

Already following? Everything you follow, with a stop for each.

The company

Nightfall is the company behind Nightfall AI.

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In its own words

Stated by the vendor, not checked

Positioning: Learn more about PCI compliance and how Nightfall helps with it.
help.nightfall.ai/nightfall_compliance/pci
For: Banks, financial institutions, and others concerned with protecting financial data
help.nightfall.ai/nightfall_compliance/pci
Integrations claimed: 5 help.nightfall.ai/nightfall_compliance/soc2
Certifications: ISO 27001
Not stated on the pages read: Price, starting price, free plan or trial, hosting, customers

What Nightfall AI's own pages state, read September 28, 2026: help.nightfall.ai/nightfall_compliance/pci, help.nightfall.ai/nightfall_compliance/soc2, help.nightfall.ai/nightfall_compliance/iso-27001, help.nightfall.ai/nightfall_compliance/phi_hipaa, help.nightfall.ai/nightfall_introduction/cloud_dlp. A claimed page can correct any of them.

Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Nightfall AI's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Nightfall AI, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

What a new claim receivesHide what a new claim receives

A new claim receives the current edition's vendor brief for Nightfall AI by email, built from the raw record of the edition. It shows:

where Nightfall AI is named, by buyer and by framing, and which cells hold its first choices;
the claims the models make when they name it, ranked, with the strongest and the weakest quoted;
its vocabulary against the segment leader's, and the pages the models cited;
who was chosen in the answers that did not name Nightfall AI, and every reason the record gives;
a battlecard for each top rival: the head-to-head split, why they win, and the reservation quoted against them;
one page of published figures cleared to show a buyer.