Fable Security

Backed byGreylock Partners
Total raised$31.0M
Hiring pace3 roles / 90d
Founded2024
Team size11-50
HQSan Francisco, California
IndustriesCybersecurity

About Fable Security

Fable is a human risk platform that transforms employees from potential security vulnerabilities into an active layer of defense by shaping behavior in real time within their work environment. Founded by early members of Abnormal Security and backed by leading venture firms Redpoint Ventures and Greylock Partners, the company operates in the multi-billion-dollar cybersecurity market with a mission to address what it identifies as cybersecurity's biggest challenge. Fable's enterprise-scale, agentic platform synthesizes data to pinpoint risky employee behaviors and automatically deploys targeted interventions to mitigate human-driven security risks. The team comprises experienced talent from major technology companies including Meta and Twitter, as well as alumni from top-tier universities such as Stanford, CMU, Berkeley, and others, bringing deep expertise in both security and behavioral science to the platform.

Open positions · 4

Company at a glance

Location
San Francisco, United States
Investors
Greylock Partners ·Redpoint Ventures

Founders & Leadership

DT

Dee T.

Engineering Leader | Founding Engineer @ Fable Security

LinkedIn
D黎

Derek Li 黎霆钧

Fighting Bad AI with Good AI

LinkedIn
NJ

Nicole Jiang-Gibson

Co-founder & CEO @ Fable Security | Ex-Abnormal AI, Palantir, Microsoft

LinkedIn
SL

Sanny Liao

Cofounder at Fable Security | We are hiring!

LinkedIn
HS

Haley Sayres

Technical Solutions @ Fable Security

LinkedIn

Location

About the Team

Team Distribution

  • Engineering36%
  • Sales & Business Development21%
  • Other Specialized16%
  • Product & Design13%
  • Leadership7%

Where the Team Studied

  1. 1.Stanford University
  2. 2.University of Waterloo
  3. 3.University of California, Berkeley
  4. 4.UCLA
  5. 5.Cornell University

Team Worked At

  • Abnormal AI
  • Google
  • Palo Alto Networks
  • Palantir Technologies
  • McKinsey & Company

Team Composition

42 people
  • Engineering3 senior15
  • Operations2 senior5
  • Media and Communication3
  • Sales2
  • Arts and Design1
  • Customer Success and Support1
  • Entrepreneurship1 senior1
  • Human Resources1 senior1

Culture & values

We value impact over process—you'll ship quickly and iterate

Engineers have high ownership and autonomy

We operate with tight feedback loops across product and engineering

We prioritize technical rigor, simplicity, and long-term scalability

Fable believes tools can convert people from targets to defense, emphasizing a human-centric approach to security

Funding History

EquityJul 2025

$31M

raised

Valuation: $120M

Human risk management platform Fable raised $31M (seed and Series A) from Greylock Partners and Redpoint Ventures.

Greylock PartnersRedpoint Ventures

Life at Fable Security

Frequently asked questions

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