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AI Cyber Defense: the tools companies use

AI that detects, investigates and responds to cyberattacks, from email and network threats to autonomous SOC and pentesting.

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178 companies on usedby use at least one of the 8 tools in this category with a public customer. Abnormal AI leads with 43 companies. Then come SentinelOne (36) and Vectra AI (35). 7 companies run two of these tools or more. The most common pair is Abnormal AI with Torq (3 companies).Latest check Oct 7, 2026: 185 of 185 public lines checked. Counts are of companies on usedby, not of the whole market: we list a company when a public page shows its AI tools.

178

companies on usedby use a tool of this category

Latest check Oct 7, 2026: 185 of 185 public lines checked

Ranked by customers

Companies with a public line for each tool. Job-post signals count and are drawn apart in the proof bar.

AI Cyber Defense tools ranked by companies on usedby
#ToolCustomersProof
1Abnormal AI43
2SentinelOne36
3Vectra AI35
4Torq27
5Darktrace16
6XBOW14
7Dropzone AI10
87AI4
Horizon3.ai NodeZero—

7 companies run two of these tools or more. The most common pair is Abnormal AI with Torq, at 3 companies.

Abnormal AI43 customers

Abnormal AI is used by 43 companies on usedby, 30 confirmed by a case study, a named quote or a press release. Named customers include Unilever, Nestlé, and Pepsico. Who uses Abnormal AI, Abnormal AI vs Torq

Customer page: abnormal.ai. Latest check of 43 of 43 lines: Oct 7, 2026.

SentinelOne36 customers

SentinelOne is used by 36 companies on usedby, 19 confirmed by a case study, a named quote or a press release. Named customers include Mastercard, Nvidia, and Cisco. Who uses SentinelOne, Abnormal AI vs SentinelOne

Customer page: sentinelone.com. Latest check of 36 of 36 lines: Oct 5, 2026.

Vectra AI35 customers

Vectra AI is used by 35 companies on usedby, 32 confirmed by a case study, a named quote or a press release. Named customers include Blackstone, KPMG, and Accenture. Who uses Vectra AI, Abnormal AI vs Vectra AI

Customer page: vectra.ai. Latest check of 35 of 35 lines: Oct 7, 2026.

Torq27 customers

Torq is used by 27 companies on usedby, 8 confirmed by a case study, a named quote or a press release. Named customers include Blackstone, Siemens, and T-Mobile. Who uses Torq, Abnormal AI vs Torq

Latest check of 27 of 27 lines: Oct 7, 2026.

Newest customers

Companies first listed by a tool of this category in the last 90 days.

No new customer yetTracking of changes on these tools' pages started on October 7, 2026. New customers appear here, dated, after two complete checks of those pages.

Most compared

Side-by-side pages with the companies behind each tool.

Questions about AI Cyber Defense

Answers drawn from usedby data.

What is the most used tool in AI Cyber Defense?

Abnormal AI, used by 43 of the 178 companies on usedby in this category. Then come SentinelOne (36) and Vectra AI (35). Who uses Abnormal AI.

Do more companies use Abnormal AI or SentinelOne?

Abnormal AI: 43 companies on usedby, against 36 for SentinelOne.

Do companies use several tools in AI Cyber Defense?

Yes: 7 of the 178 companies on usedby in this category run two or more. The most common pair is Abnormal AI with Torq (3 companies).

How does usedby rank these tools?

By the number of companies with a public line for each tool, read from dated captures of vendor customer pages, case studies, press releases and job posts. Job-post signals count in the totals and are shown apart. usedby lists a company when a public page shows it, so these counts describe the companies on usedby, not the whole market.