Antivirus Software

Kaspersky vs Microsoft Defender

AI visibility head-to-head, Antivirus Software — run #58 (2026-07-13). Microsoft Defender leads with statistical confidence (non-overlapping 95% CIs).

Kaspersky

25.5
95% CI23.127.9
Industry rank#6
perplexity21.6
google22.5
openai26.9
anthropic22.3
vs

Microsoft Defender · leads

49.8
95% CI46.952.4
Industry rank#1
perplexity45.2
google47.8
openai50.8
anthropic49.0

Share of answers mentioning each brand, split by the intent behind the question. The panel asks 10 prompts of each type, so a lead here shows where one brand wins — not just that it wins overall.

Question typeKasperskyMicrosoft Defender
Recommendations
What's the best option for me?
38%50%
Comparisons
How do the top options stack up?
10%17%
Ready to buy
Which one should I actually get?
32%53%
Problem-solving
I have this problem — what fixes it?
35%62%
Informational
How does this kind of product work?
14%56%

Bold marks the higher point estimate; the headline verdict above uses non-overlapping confidence intervals. Methodology