The most visible DLP tools in Europe, October 2026

October 2026 · 105 questions asked from 7 countries · ChatGPT, Google AI Overviews, Gemini and Google AI Mode · 420 answers read

Most cited source

nist.gov

94citations

From ChatGPT

Where engines disagree most

They agree

Every engine names the same top three.

Brands

Search is not measured for this board yet, so it ranks on AI answers.

Rank Brand Rank change Heralded Score All AI Score trend Mentioned Recommended By engine Mentioned by Change
11 Zscaler US New entry 3 , range 2–5 3#11
3
  • : score 3 · #11
4% 0% First reading
12 Palo Alto Prisma US New entry 3 , range 2–5 3#12
3
  • : score 3 · #12
4% 0% First reading
13 Cloudflare US New entry 3 , range 2–5 3#13
3
  • : score 3 · #13
3% 0% None First reading
14 Mimecast Incydr GB New entry 3 , range 2–5 3#14
3
  • : score 3 · #14
3% 0% First reading
15 Palo Alto Networks Enterprise DLP US New entry 2 , range 2–4 2#15
2
  • : score 2 · #15
2% 0% None First reading
16 Cyberhaven US New entry 2 , range 1–4 2#16
2
  • : score 2 · #16
2% 0% First reading
17 Nightfall AI US New entry 2 , range 1–4 2#17
2
  • : score 2 · #17
2% 0% First reading
18 Varonis US New entry 2 , range 1–3 2#18
2
  • : score 2 · #18
1% 0% None First reading
19 Chrome Enterprise US New entry 1 , range 1–3 1#19
1
  • : score 1 · #19
1% 0% None First reading
20 Teramind US New entry 1 , range 1–3 1#20
1
  • : score 1 · #20
1% 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. AI gives each brand’s score and rank from the engines’ answers; Search is not measured for this board yet. 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
11 filecloud.com Vendor site 2.9% 3 of 4 1 Not read
12 gartner.com Industry authority 2.1% 3 of 4 4 10
13 aepd.es Regulator 0.5% 1 of 4 7 Not read
14 medium.com Community 2.1% 3 of 4 6 Not read
15 ico.org.uk Regulator 0.7% 2 of 4 8 Not read
16 ncsc.nl Regulator 1.0% 2 of 4 6 Not read
17 opswat.com Vendor site 1.9% 2 of 4 4 Not read
18 scalefusion.com Vendor site 1.9% 3 of 4 7 8
19 cloudian.com Vendor site 1.2% 2 of 4 5 Not read
20 cyber.gouv.fr Regulator 0.7% 1 of 4 7 Not read

Questions asked

QuestionLanguageMost recommended
How can we find sensitive files being uploaded to unsanctioned apps? English Microsoft Defender for Cloud Apps
How do companies stop employees copying confidential data to USB drives? English Microsoft Purview
How can I see where sensitive company data is being shared? English Microsoft Purview
Should we protect sensitive data on endpoints or in cloud apps? English No brand recommended
Is it better to block data transfers or alert security teams? English No brand recommended
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 on employees sharing confidential files? English Microsoft Purview
How can we replace separate rules for email and endpoint data leaks? English Google Workspace DLP 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 leaderboard ranks brands on two sides. AI is how ChatGPT, Gemini, Google AI Overviews and Google AI Mode answer the board's buyer questions. Search is Google's top 10 results for the keywords behind those questions. All combines the two, where Search is measured.

For the AI side, 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