Brandwave

Avanan vs Microsoft Defender for Office 365:Which is more popular?

In September 2026, Avanan had more branded searches than Microsoft Defender for Office 365 among email security platforms worldwide. Avanan had about 33,100 branded searches, while Microsoft Defender for Office 365 had 2,400. Avanan made up 13.3% of all email security platform searches we track, and Microsoft Defender for Office 365 accounted for 0.97%. When we asked ChatGPT and Google AI Overviews about email security platforms, Microsoft Defender for Office 365 appeared in four of the five answers and Avanan in one. Microsoft Defender for Office 365 was mentioned before Avanan in four out of five answers.

Among email security platforms worldwide in September 2026

Who do people search for more?

Avanan, about 14 searches for every 1 for Microsoft Defender for Office 365

Avanan 33.1K searchesMicrosoft Defender for Office 365 2.4K searches

Who does AI mention more?

Microsoft Defender for Office 365, mentioned in 4 of 5 answers, Avanan in 1

Microsoft Defender for Office 365 in 4 of 5Avanan in 1 of 5

Who does AI recommend more?

Microsoft Defender for Office 365, named ahead of Avanan in 4 of 5 answers

Microsoft Defender for Office 365 first in 4Avanan first in 1

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Top email security platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Microsoft Defender for Office 365 was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Avanan was mentioned in one out of five: not in any of the three ChatGPT answers, but in one of the two Google AI Overviews. Microsoft Defender for Office 365 was listed before Avanan in four out of five answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Proofpoint1st
  2. Microsoft Defender for Office 3652nd
  3. Abnormal Security3rd
  4. Mimecast4th
  5. Check Point5th
  6. Barracuda6th
  7. Avanan7th
  8. IRONSCALES8th

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Mimecast5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Proofpoint5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Barracuda4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Microsoft Defender for Office 3654 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Check Point3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Abnormal Security3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Avanan1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • IRONSCALES1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about email security platforms

5 answers

Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.

Is Avanan or Microsoft Defender for Office 365 more popular in search?

This chart shows how often people search Google for Avanan and Microsoft Defender for Office 365 by name. Each line represents a brand's share of searches for all eight email security platforms we track, month by month, from English-language searches worldwide.

Avanan and Microsoft Defender for Office 365 among email security platforms worldwide, by month

Share of searches by month for Avanan, Microsoft Defender for Office 365. The figures are in the table below the chart.

View monthly share of searches table
MonthMimecastProofpointAvananBarracudaCheck PointAbnormal SecurityIRONSCALESMicrosoft Defender for Office 365
Oct 202543.2%23.8%13%7.3%5.3%3.2%2.1%2.1%
Nov 202539.9%26.6%14.6%6.7%5.5%2.4%1.9%2.4%
Dec 202542.6%23.3%15.6%7.1%5.6%2.1%2.1%1.7%
Jan 202642.2%23.2%15.5%7%6.2%2.5%1.7%1.7%
Feb 202639.5%26.4%14.4%6.9%6.4%2.4%2.4%1.6%
Mar 202640.9%27.5%12.3%6.8%6%2.5%2%2%
Apr 202638.8%25.9%14.2%7.8%6.3%2.3%2.3%2.3%
May 202639.6%26.5%14.5%7.9%5.8%1.9%1.9%1.9%
Jun 202644.2%24.3%13.3%7.3%5.9%1.8%1.8%1.4%
Jul 202641.1%22.5%15%9.7%6%2%2%1.6%
Aug 202639.9%26.7%14.6%7.9%5.8%1.9%1.9%1.3%
Sep 202644.3%24.4%13.3%7.5%5.9%1.8%1.8%0.97%

How has the Avanan and Microsoft Defender for Office 365 comparison changed over the last 12 months?

3 findings

How did search popularity change for email security platforms worldwide in September 2026?

2 changes

  1. In September 2026, Avanan lost share of searches among email security platforms worldwide, from 14.6% to 13.3%.

  2. Estimated monthly branded searches for Microsoft Defender for Office 365 worldwide fell 55.6% over 12 measured months, from 5.4K to 2.4K in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Avanan’s and Microsoft Defender for Office 365’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Avanan

1 branded search term

  • avanan

Microsoft Defender for Office 365

1 branded search term

  • microsoft defender for office 365

How the Brand Demand Index is measured

Other head-to-heads among email security platforms

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