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Penetration testing as a service · October 2026 Edition

BreachLock vs UnderDefense

Five of fourteen models named BreachLock first on the direct prompt; two named UnderDefense. BreachLock was named by twelve of the fourteen models and UnderDefense by seven and BreachLock carries 35 labels and UnderDefense 11, so the shares are not directly comparable.

BreachLock

accepted challenger

Named in three categories this edition.

UnderDefense

accepted challenger

Named in four categories this edition.

First-choice share19%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.

Negative rate0%0%Negative labels as a share of the product's labels, 0 to 100.

Rank in category#2#5A position in a field of 10; printed, not drawn.

Labels3511A count; the two differ.

The two percentage rows are drawn on one 0 to 100 track, BreachLock reading right to left. Rank and label count are printed, not drawn.Cobalt was named alongside these two in ten of the fourteen direct answers. Cobalt vs BreachLock · Cobalt vs UnderDefense · BreachLock vs Synack

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 penetration testing as a service page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.

BreachLockFirst choices, of fourteen modelsUnderDefense

Direct52

Paraphrase30

Comparative00

Budget-constrained10

Scale-constrained00

Negative00

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 October 2026 Edition, BreachLock and UnderDefense were named in the same answer eighteen times, of the 93 answers naming BreachLock and the 68 naming UnderDefense. In those answers UnderDefense took the first choice one time and BreachLock two.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where BreachLock and UnderDefense stood in it.

Model	Direct	Paraphrase	Comparative	Budget-constrained	Scale-constrained	Negative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
GPT-6 Luna
Muse Glimmer 30B

BreachLock

UnderDefense

first choice

named as an alternative

argued againstblank: not namedEach cell is one answer, BreachLock on the left and UnderDefense on the right.

The direct prompt

The plain question, one answer per model, grouped by where BreachLock and UnderDefense stood in it.

Both were the first choice

1 of 14 modelsThe answer named them together, and the judge labeled each a first choice.

MiniMax M2.5BreachLock, UnderDefense alternatives: Raxis, Synack

BreachLock first, UnderDefense not the choice

4 of 14 modelsUnderDefense was named in the answer but not as the choice, or not at all.

Claude Haiku 4.5BreachLock, Cobalt alternatives: Packetlabs, Raxis, Stingrai

Perplexity SonarBreachLock alternatives: Cobalt, Raxis, Stingrai

Grok 4.1 FastBreachLock alternatives: Bright Defense, NetSPI, Packetlabs, Prescient Security

Mistral SmallBreachLock, Cobalt alternatives: NetSPI, Stingrai, Synack

UnderDefense first, BreachLock an alternative

1 of 14 modelsBreachLock was named in the answer but not as the choice, or not at all.

GLM 4.7 FlashXCobalt, UnderDefense alternatives: BreachLock, NetSPI, Packetlabs

Neither was the first choice, one was named

5 of 14 modelsThe answer put something else first and named one of the two as an alternative.

Gemini 3.5 FlashCobalt alternatives: BreachLock, NetSPI, UnderDefense

DeepSeek V4 FlashCobalt, Raxis alternatives: BreachLock, Packetlabs, UnderDefense

Qwen 3.7 FlashRed Siege Security alternatives: Astra Security, BreachLock, Lumina.io, Netragard

Kimi K2Cobalt alternatives: BreachLock, Coalfire, Praetorian

Muse Glimmer 30BCobalt alternatives: Astra Security, HackerOne, Netragard, Red Siege, UnderDefense

Neither was named

3 of 14 modelsThe answer made no first choice from these two in this category.

GPT-5.4 miniCobalt alternatives: Cognisys, Trava Security

Llama 4 Maverickno first choice

GPT-6 LunaCobalt alternatives: Bishop Fox, NetSPI

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

BreachLock leads by eleven points.

BreachLock#3 of 8

UnderDefense#6 of 8

The full small business standing →

Mid-marketThe figures above

BreachLock leads by fifteen points.

BreachLock#2 of 10

UnderDefense#5 of 10

The full mid-market standing →

Enterprise

BreachLock leads by six points.

BreachLock#4 of 11

UnderDefense#– of 11

The full enterprise standing →

What the models said about BreachLock

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of four in this category shown.

“For compliance-driven mid-market: Cobalt, Packetlabs, or BreachLock are the most frequently recommended choices.” Claude Haiku 4.5 · direct prompt · first choice

“with a slight edge to BreachLock if you want transparent, subscription-style pricing and compliance-ready reporting” Muse Glimmer 30B · paraphrase prompt · first choice

“Cobalt.io and BreachLock are especially popular due to their PTaaS models and focus on mid-market needs” Mistral Small · direct prompt · first choice

What the models said about UnderDefense

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.

“I'd recommend BreachLock or UnderDefense as they specifically target mid-market companies” MiniMax M2.5 · direct prompt · first choice

“UnderDefense or Cobalt offer the best balance of pricing, quality, and scalability” GLM 4.7 FlashX · direct prompt · first choice

Also compared

Cobalt vs BreachLock Cobalt vs UnderDefense BreachLock vs Synack BreachLock vs Astra Security BreachLock vs HackerOne BreachLock vs Bugcrowd Synack vs UnderDefense Astra Security vs UnderDefense UnderDefense vs HackerOne UnderDefense vs Bugcrowd All twenty-one head-to-head pages and the full ptaas 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.