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OT and IoT security · November 2026 Edition
Microsoft Defender for IoT vs Palo Alto Networks OT Security
Five of fourteen models named Microsoft Defender for IoT first on the direct prompt; zero named Palo Alto Networks OT Security. Microsoft Defender for IoT was named by thirteen of the fourteen models and Palo Alto Networks OT Security by twelve and Microsoft Defender for IoT carries 49 labels and Palo Alto Networks OT Security 23, so the shares are not directly comparable.
Microsoft Defender for IoT
endorsed leaderNamed in one category this edition.
Palo Alto Networks OT Security
accepted challengerNamed in one category this edition.
First-choice share38%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate8%17%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#8A position in a field of 11; printed, not drawn.
Labels4923A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Microsoft Defender for IoT reading right to left. Rank and label count are printed, not drawn.Claroty xDome was named alongside these two in ten of the fourteen direct answers. Microsoft Defender for IoT vs Claroty xDome · Microsoft Defender for IoT vs Nozomi Networks Guardian · Microsoft Defender for IoT vs Fortinet OT Security Platform
Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the OT and IoT security page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Microsoft Defender for IoTFirst choices, of fourteen modelsPalo Alto Networks OT Security
Direct501 against Palo Alto Networks OT Security
Paraphrase70
Comparative11
Budget-constrained71
Scale-constrained00
Negative004 against Microsoft Defender for IoT · 3 against Palo Alto Networks OT Security
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.
Across every category in the November 2026 Edition, Microsoft Defender for IoT and Palo Alto Networks OT Security were named in the same answer fifty-two times, of the 151 answers naming Microsoft Defender for IoT and the 68 naming Palo Alto Networks OT Security. In those answers Palo Alto Networks OT Security took the first choice one time and Microsoft Defender for IoT five.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Microsoft Defender for IoT and Palo Alto Networks OT Security stood in it.
| Model | DirectMDPA | ParaphraseMDPA | ComparativeMDPA | Budget-constrainedMDPA | Scale-constrainedMDPA | NegativeMDPA |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | MD | MD | PA | |||
| GPT-5.4 mini | ||||||
| Gemini 3.5 Flash | MD | MD | MD | MD | ||
| Perplexity Sonar | MD | MD | MDPA | MD | MD | |
| Grok 4.20 | PA | MD | MDPA | MD | MDPA | |
| Mistral Small | MD | MD | MD | MDPA | ||
| DeepSeek V4 Flash | MD | MD | MDPA | MD | ||
| Llama 4 Maverick | MD | MD | ||||
| Qwen 3.7 Flash | MD | MD | PA | |||
| Kimi K2 | MD | MD | MD | |||
| GLM 4.7 FlashX | PA | MD | MDPA | MD | ||
| MiniMax M2.5 | MD | MD | MD | |||
| GPT-6 Luna | MD | MDPA | MD | |||
| Muse Glimmer 30B | MD | MD | MD |
MD Microsoft Defender for IoTPA Palo Alto Networks OT SecurityMD first choiceMD named as an alternativeMD argued againstblank: not namedEach cell is one answer, Microsoft Defender for IoT on the left and Palo Alto Networks OT Security on the right.
The direct prompt
The plain question, one answer per model, grouped by where Microsoft Defender for IoT and Palo Alto Networks OT Security stood in it.
Microsoft Defender for IoT first, Palo Alto Networks OT Security not the choice
5 of 14 modelsPalo Alto Networks OT Security was named in the answer but not as the choice, or not at all.Perplexity SonarMicrosoft Defender for IoT alternatives: Fortinet OT Security Platform, Nozomi Networks Guardian, Tenable OT Security
Mistral SmallClaroty xDome, Microsoft Defender for IoT alternatives: Dragos Platform, Nozomi Networks Guardian, Tenable OT Security
DeepSeek V4 FlashMicrosoft Defender for IoT alternatives: Claroty xDome, Nozomi Networks Guardian
Kimi K2Microsoft Defender for IoT, Nozomi Networks Guardian alternatives: OTORIO, SecuPi
MiniMax M2.5Microsoft Defender for IoT, Nozomi Networks Vantage alternatives: Fortinet OT Security Platform, Palo Alto Networks Zero Trust OT Security
Neither was the first choice, one was named
4 of 14 modelsThe answer put something else first and named one of the two as an alternative.Gemini 3.5 FlashClaroty xDome alternatives: Armis Centrix, Fortinet OT Security Platform, Microsoft Defender for IoT, Nozomi Networks Guardian
Qwen 3.7 FlashClaroty xDome alternatives: Armis Centrix, Microsoft Defender for IoT, Nozomi Networks Guardian
GLM 4.7 FlashXFortinet OT Security Platform alternatives: Claroty xDome, Palo Alto Networks OT Security
Muse Glimmer 30BNozomi Networks Guardian alternatives: Claroty xDome, Fortinet OT Security Platform, Microsoft Defender for IoT, Tenable OT Security
Neither was named
5 of 14 modelsThe answer made no first choice from these two in this category.Claude Haiku 4.5Asimily alternatives: Claroty xDome, Forescout Vistaro Platform, Tenable OT Security
GPT-5.4 miniClaroty xDome alternatives: Fortinet OT Security Platform, Nozomi Networks Guardian, Tenable OT Security
Grok 4.20Claroty xDome alternatives: Dragos Platform, Nozomi Networks Guardian
Llama 4 Maverickno first choice
GPT-6 LunaClaroty xDome alternatives: Nozomi Vantage
Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Microsoft Defender for IoT leads by forty-seven points.
Microsoft Defender for IoT49%#1 of 11
Palo Alto Networks OT Security2%#7 of 11
The full small business standing →Mid-marketThe figures above
Microsoft Defender for IoT leads by thirty-six points.
Microsoft Defender for IoT38%#1 of 11
Palo Alto Networks OT Security2%#8 of 11
The full mid-market standing →Enterprise
Microsoft Defender for IoT leads by fifteen points.
Microsoft Defender for IoT19%#2 of 9
Palo Alto Networks OT Security4%#7 of 9
The full enterprise standing →What the models said about Microsoft Defender for IoT
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“often criticized for requiring integration with separate SIEM and SOAR tools, which can complicate deployment” Mistral Small · negative prompt · soft negative
“Microsoft Defender for IoT is generally well-regarded but can feel basic if not combined with others.” Grok 4.20 · negative prompt · soft negative
“Microsoft Defender for IoT has been criticized for its premium pricing and complex deployments.” Llama 4 Maverick · negative prompt · soft negative
“The top results suggest that Microsoft Defender for IoT is a recommended industrial and IoT device security tool for mid-sized B2B companies.” Llama 4 Maverick · paraphrase prompt · first choice
“Start with Microsoft Defender for IoT if you're already in the Microsoft ecosystem—it's the most cost-effective entry point” DeepSeek V4 Flash · direct prompt · first choice
“Defender for IoT OT site license XS at ~$70/mo per site up to 100 devices is the most accessible commercial starting point.” Muse Glimmer 30B · budget prompt · first choice
What the models said about Palo Alto Networks OT Security
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“consistently highlight expensive pricing (often the top con...), complex setup/configuration, and a steeper learning curve for OT teams” Grok 4.20 · negative prompt · soft negative
“Complex setup, steep learning curve, high cost, requires specialized expertise. May be overkill for small operations.” Qwen 3.7 Flash · negative prompt · soft negative
“Also noted as a "criticized challenger" with limited positive feedback in recent rankings” Mistral Small · negative prompt · soft negative
“OT appliances start at $2,200-$4,000 with bundles scaling to $7,000-$10,000, making this a more affordable entry point than enterprise solutions.” Claude Haiku 4.5 · budget prompt · first choice
“converged solutions from vendors like Microsoft, Palo Alto, or Claroty are increasingly preferred” Grok 4.20 · comparative prompt · first choice
“The Premium Choice: Palo Alto Networks ... The Trade-off: It is generally more expensive and has a steeper learning curve than Fortinet.” GLM 4.7 FlashX · direct prompt · alternative
Also compared
Microsoft Defender for IoT vs Claroty xDomeMicrosoft Defender for IoT vs Nozomi Networks GuardianMicrosoft Defender for IoT vs Fortinet OT Security PlatformMicrosoft Defender for IoT vs Armis CentrixMicrosoft Defender for IoT vs Tenable OT SecurityMicrosoft Defender for IoT vs Forescout Vistaro PlatformClaroty xDome vs Palo Alto Networks OT SecurityNozomi Networks Guardian vs Palo Alto Networks OT SecurityFortinet OT Security Platform vs Palo Alto Networks OT SecurityArmis Centrix vs Palo Alto Networks OT SecurityTenable OT Security vs Palo Alto Networks OT SecurityForescout Vistaro Platform vs Palo Alto Networks OT SecurityAll twenty-eight head-to-head pages and the full ot/iot security standing
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.