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Red teaming and evaluation · #4 by signal score

SPLX

Automated AI red teaming with thousands of attack simulations, plus runtime guardrails, prompt hardening, and discovery of models, workflows, and MCP servers. Acquired by Zscaler in 2025 and now sold as Zscaler AI Red Teaming.

Acquired by Zscaler, announced 2025-11-03, closed 2025-10-31 ($40.6M, per SEC filing). Now sold as Zscaler AI Red Teaming.

10Signal score / 100
Capital
0.3/35
Product
10/25
Standards
0/20(not yet assessed)
Momentum
0/20

Identity primitives

Agent as a first-class identityNot checked
On-behalf-of token exchangeNot checked
Cross App Access (ID-JAG)Not checked
Asynchronous human approval (CIBA)Not checked
MCP authorization conformanceNot checked
Fine-grained authorizationNot checked
Short-lived, secretless credentialsNot checked
Token vaultNot checked
Kill switchNo public claim found
Per-action audit chainNo public claim found

Company

HQ: US
Founded: 2023
Funding: $9M disclosed, latest Seed

Sources

  1. SPLX is now part of Zscaler (vendor, accessed 2026-09-24)
  2. Zscaler Automated AI Red Teaming (vendor, accessed 2026-09-24)
  3. Zscaler and OpenAI join forces (AI Red Teaming, formerly SPLX) (vendor, accessed 2026-09-24)
  4. Zscaler secures the enterprise AI lifecycle with acquisition of AI security pioneer SPLX (press-release, accessed 2026-09-24)
  5. Zscaler acquires AI security company SPLX (trade-press, accessed 2026-09-24)
  6. Zscaler, Inc. Form 10-K for the fiscal year ended July 31, 2026 (sec, accessed 2026-09-24)

Last verified 2026-09-24.