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The most visible antivirus apps on ChatGPT, October 2026

October 2026 · 15 questions asked in English, worldwide · ChatGPT · 19 answers read

Where engines disagree most

One engine

This page reads ChatGPT only. Set Engine to All to compare them.

Brands

Rank Brand Heralded Score Mentioned Recommended By engine Mentioned by Change
1 Microsoft Defender US 59 , range 40–79 46% 46% First reading
2 Bitdefender RO 41 , range 26–64 27% 27% First reading
= 3 McAfee US 34 , range 8–52 27% 8% None First reading
= 3 Norton US 34 , range 8–52 27% 8% First reading
5 Malwarebytes US 26 , range 2–47 12% 12% None First reading
6 Avast CZ 18 , range 1–45 15% 4% First reading
– Aura US Too few answers 0% 0% None First reading
– AVG CZ Too few answers 4% 0% First reading
– Avira DE Too few answers 4% 0% First reading
– ESET SK Too few answers 8% 8% 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 av-test.org Review site 21.1% 1 of 4 5 0
2 av-comparatives.org Review site 5.3% 1 of 4 2 9

The questions, and who wins each

QuestionLanguageWins it
do i need antivirus protection if i only download apps from official stores English Microsoft Defender
what can replace relying on built-in security to protect my laptop English Microsoft Defender
how can i replace separate security apps with one for my devices English No brand recommended
i work remotely and need to protect my laptop on public wi-fi English No brand recommended
i have children using shared devices and need to block unsafe downloads 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