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The most visible DLP tools, October 2026

October 2026 · 15 questions asked in English, worldwide · ChatGPT, Google AI Overviews, Gemini and Google AI Mode · 86 answers read

Most cited source

microsoft.com

64citations

From Google AI Mode, Gemini, Google AI Overviews and ChatGPT

Where engines disagree most

Netskope

1/4engines put it in their top three

Top three on ChatGPT, not on Google AI Mode, Gemini and Google AI Overviews

Brands

Rank Brand Heralded Score Mentioned Recommended By engine Mentioned by Change
1 Microsoft Purview US 53 , range 43–69 58% 21% First reading
2 Netskope US 26 , range 17–35 20% 3% None First reading
3 Broadcom Symantec DLP US 23 , range 16–34 20% 1% First reading
4 Forcepoint US 22 , range 16–33 19% 1% First reading
5 Microsoft Defender for Cloud Apps US 18 , range 11–31 8% 7% First reading
6 Proofpoint US 17 , range 11–30 11% 2% First reading
7 Fortra Digital Guardian US 12 , range 6–24 8% 0% None First reading
= 8 Google Workspace DLP US 11 , range 2–22 4% 2% First reading
= 8 Mimecast Incydr GB 11 , range 4–22 6% 0% First reading
10 Zscaler US 10 , range 3–21 5% 0% First reading

“=” marks brands whose score ranges overlap, so the test cannot separate them. Every brand named in at least three answers is ranked. By engine has one dot per engine (ChatGPT, Google AI Overviews, Gemini and Google AI Mode), darker the more often it names the brand.

Most cited sources

Rank Source Type Cited in Engines Pages cited Brands its pages mention
11Withheld. Run a full Snapshot to see it.
12Withheld. Run a full Snapshot to see it.
13Withheld. Run a full Snapshot to see it.
14Withheld. Run a full Snapshot to see it.
15Withheld. Run a full Snapshot to see it.
16 gartner.com Industry authority 4.7% 2 of 4 2 0
17 filecloud.com Vendor site 3.5% 2 of 4 1 0
18Withheld. Run a full Snapshot to see it.
19 github.com Vendor site 2.3% 1 of 4 3 0
20Withheld. Run a full Snapshot to see it.

The questions, and who wins each

QuestionLanguageWins it
how do companies prevent data leaks across email, browsers, and file storage English No brand recommended
can one policy protect sensitive data on laptops and in cloud services English Microsoft Purview
what can replace manual checks for employees sharing confidential files English No brand recommended
how can we replace separate rules for email and endpoint data leaks English Chrome Enterprise and Microsoft Purview, tied
what can replace blocking every file upload to prevent data leaks English No brand recommended

Each engine's top three

Method

Each month Heralded asks every engine the same buyer questions, twice each, and reads every answer. An answer counts 0 for a brand it leaves out, 50 for a brand it names and 100 for a brand it recommends, and the Heralded Score is built from those. A brand named in at least three answers gets a score and a place.

How the leaderboards are measured