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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% 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% 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% None 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
1 microsoft.com Brand site 36.0% 4 of 4 38 6
2Withheld. Run a full Snapshot to see it.
3Withheld. Run a full Snapshot to see it.
4Withheld. Run a full Snapshot to see it.
5 netskope.com Brand site 5.8% 2 of 4 7 1
6 reddit.com Community 9.3% 2 of 4 7 17
7Withheld. Run a full Snapshot to see it.
8Withheld. Run a full Snapshot to see it.
9 google.com Brand site 4.7% 1 of 4 7 3
10Withheld. Run a full Snapshot to see it.

The questions, and who wins each

QuestionLanguageWins it
what tools can stop employees from sharing sensitive data outside the company English Microsoft Purview and Netskope, tied
what should a company use to prevent data leaks across email and cloud apps English Microsoft Purview
how can a business protect customer data on employee laptops English No brand recommended
what software helps keep confidential files from leaving a company English Microsoft Purview
how do i stop staff from emailing customer records to personal accounts English Microsoft Purview
how can we find sensitive files being uploaded to unsanctioned apps English Microsoft Purview
how do companies prevent employees from copying confidential data to usb drives English No brand recommended
how can i see where sensitive company data is being shared English Microsoft Purview
should we protect sensitive data at the endpoint or in cloud apps English Microsoft Purview
is it better to block data transfers or alert security teams 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