Fable
Fable Security sells an AI-powered human risk management platform that uses behavioral science and security telemetry to deliver targeted employee interventions via Slack and Teams, serving enterprise security teams in healthcare, financial services, and technology.
- Company typePrivate
- Founded2024
- HeadquartersSan Francisco, United States
- Headcount51–100
- GTM typeB2B
- OfferingSoftware
What Fable does
Fable Security, Inc. is a San Francisco-based enterprise software company founded in 2024 that sells an AI-powered human risk management platform targeting security leaders at mid-market and enterprise organizations. The company is led by co-founders Nicole Jiang (CEO) and Dr. Sanny Liao (CPO), both former Abnormal AI product and data science leads, alongside CRO Matthew Fermino, VP of Engineering Nick Gorski, and CISO Jacob Berry.
Fable's platform synthesizes security telemetry from integrations including Okta, Microsoft, CrowdStrike, Netskope, DLP, and IAM tools to build continuous employee risk profiles, segment workforces into risk-based cohorts, and deploy targeted behavioral interventions. Core product components include the Fable Risk Engine, the natural-language Cohort Builder, AI Studio (for custom deepfake and voice-fake simulation content), the Composer video editor, the Organization View employee visibility module, and the Fable Dashboard executive reporting surface. Interventions — including AI-generated videos, nudges, and chats — are delivered in real time through Slack and Microsoft Teams when risky behavior is detected. The company positions its approach as adtech-inspired behavioral science, contrasting with legacy broadcast awareness training vendors.
Fable operates as a quote-based SaaS subscription sold via Order Forms on annual or multi-year terms, distributed exclusively through direct enterprise field sales with no public marketplace or self-serve tier. Target verticals are Healthcare, Financial Services, and Technology, with referenceable customers including Pennymac, Genesys, Dayton Children's Hospital, and DNC. The company has raised $31M across a Greylock Partners-led seed and a Redpoint Ventures-led Series A at a reported $120M valuation, and has been recognized on the Fortune Cyber 60, TechCrunch AI Disruptors 60, and Rising in Cyber 2026 lists.
Fable firmographics
Firmographics- Name
- Fable
- Legal name
- Fable Security, Inc.
- Website
- https://fablesecurity.com
- Company type
- Private
- Founded year
- 2024
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Fable Security sells an AI-powered human risk management platform that uses behavioral science and security telemetry to deliver targeted employee interventions via Slack and Teams, serving enterprise security teams in healthcare, financial services, and technology.
- Ownership category
- akta.pro rank
Fable industry classification
Industry- Product category
- Human Risk Management Software
- NAICS
- Software Publishers (513210)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Security Awareness & Phishing Simulation (Email/Collab-focused) (HDADAKAJ)
Keywords
Where Fable is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Fable business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations
Revenue model
- SaaS Subscription: Fable operates as a Software-as-a-Service (SaaS) platform with subscription-based pricing. Customers purchase subscriptions for a specified number of users during a defined subscription term through Order Forms. The platform grants organizations a non-exclusive, nontransferable right to use the service for up to the number of authorized users identified in the Order Form. Subscriptions automatically renew for one-year terms unless canceled with 30 days written notice.
- Professional Services: The Terms of Service reference support services included in the subscription cost, with optional custom security briefing requests available through the platform's structured intake flow.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Enterprise subscription with customizable user count and term length |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels7 records
Fable product offering
Product offeringCore offering
Fable Security sells an enterprise SaaS human risk management platform that uses AI and behavioral science to reduce employee-driven cybersecurity risk. The platform synthesizes security telemetry from identity, endpoint, DLP, and browser tools to score employee risk, segment users into cohorts, and deliver AI-generated video briefings, nudges, chats, and phishing simulations through Slack, Microsoft Teams, and email in the flow of work. Customers purchase annual subscriptions sized by user count, with pricing determined via Order Forms.
Product overview
Fable Security offers a unified human risk management platform combining a core behavioral change engine with modular products and sub-products. The platform is built on AI-powered behavioral science principles (adtech-inspired) and centers on the Fable Human Risk Management Platform, which synthesizes security telemetry into continuous human risk scores. The portfolio includes Behavioral Interventions (targeted AI-generated nudges, briefings, and chats), Phishing Simulations (realistic attack testing across vectors), Security Awareness Training (role-based micro-learning content), Human Risk Reporting (risk profiling and board-ready metrics), Emerging Threat Response (same-day threat guidance), and Secure AI Enablement (shadow AI and AI policy management). Supporting modules include AI Studio (deepfake/voice simulation creation), Composer (video editing), Cohort Builder (natural language cohort creation), Organization View (org-wide employee visibility), Manager Escalation (automated manager notifications), and Fable Dashboard (executive program overview). The platform delivers interventions via Slack and Microsoft Teams and integrates with Okta, Microsoft, CrowdStrike, Netskope, and DLP/browser-based security tools.
Differentiator
Problem solved
Functional benefit
Products and services
- Fable Human Risk Management Platform Enterprise SaaS platform applying adtech-inspired behavioral science and AI to reduce human cybersecurity risk through targeted, personalized behavioral interventions delivered in the flow of work.
- Phishing Simulations AI-driven simulation campaigns that test employees on realistic modern threats including phishing, vishing, deepfakes, MFA bombing, and LLM injection, with automated follow-up training mass-customized to individual errors.
- Behavioral Interventions AI-generated videos, nudges, and chats that prompt behavior change, delivered as targeted, hyper-relevant interventions through Slack and Microsoft Teams in real time when risky behavior is detected.
- Security Awareness Training AI-customizable training content covering real-world topics from phishing and MFA fatigue to data handling and compliance, assigned to employees based on risk, role, and threat exposure.
- Human Risk Reporting
Quantifiable outcome
- 2.4x improvement in phishing reporting rates with Fable briefing vs without
- +7 more outcomes
Companies that use Fable
Customer profileNamed customers4 records
Segments3 records
Ideal customer profiles3 records
Fable technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration9 records
AI capability9 records
Feature7 records
Fable partnerships and signals
Strategic signalScale indicators13 records
Recent moves6 records
Expansion highlights6 records
Fable competitors and assessment
Company assessmentDirect peers
- Curricula: Curricula is a security awareness training platform targeting SMB and mid-market with engaging, story-based phishing and training content. It is comparable to Fable in category but serves a smaller customer segment and lacks the telemetry-driven intervention layer.
- KnowBe4: KnowBe4 is the market-leading security awareness and phishing simulation platform, directly comparable to Fable's core training and phishing products. Both serve enterprise CISOs with subscription-based awareness content, but Fable differentiates with AI-driven, telemetry-based behavioral interventions rather than legacy training completion.
- Hoxhunt: Hoxhunt is an AI-driven security behavior change platform that combines personalized phishing simulations with just-in-time training. Like Fable, it emphasizes measurable behavior outcomes over completion metrics and serves global enterprise customers with a SaaS subscription model.
- Living Security: Living Security delivers human risk management and security awareness training with an emphasis on engagement and behavior change, similar to Fable's mission. It serves enterprise security teams with subscription-based training content and human risk analytics.
- NINJIO: NINJIO provides security awareness training through episodic, animated content focused on phishing, social engineering, and compliance. Comparable to Fable's awareness training offering, though NINJIO relies on scheduled content delivery rather than real-time behavioral interventions.
- CybSafe: CybSafe is a UK-based human risk management platform using behavioral science and analytics to reduce security incidents. Closely comparable to Fable's behavioral-science-led approach and outcome-based measurement, though primarily serving EMEA markets.
Broad incumbents
- Proofpoint Security Awareness: Proofpoint Security Awareness is the awareness and phishing simulation arm of Proofpoint, a major enterprise cybersecurity vendor. Overlaps directly with Fable in phishing simulations and training but as part of a broader email security and compliance portfolio with deep enterprise distribution.
- Microsoft Defender for Endpoint: Microsoft's security portfolio includes awareness and attack simulation training capabilities bundled with Defender and Entra. As a broad incumbent, Microsoft competes with Fable by bundling basic training into existing enterprise agreements, posing a pricing pressure risk.
- SANS Institute: SANS Institute is a long-established cybersecurity training and certification provider offering security awareness content and phishing simulations. Comparable in category but focused on technical training depth and certifications rather than Fable's real-time behavioral intervention model.
Others
- Abnormal Security: Abnormal Security is an AI-driven email security platform where both Fable co-founders previously led product and data science. It is adjacent rather than directly competing, but the alumni network and shared go-to-market in enterprise CISOs make it a strategically relevant comparable.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Fable social profiles
Digital presenceFable compliance and trust
Trust signalCompliance4 records
Fable financial estimates
Financial estimateRevenue estimate
Valuation estimate
Fable leadership team
Management profileNumber of profiles
Profiles5 records
Fable funding detail
Funding detailFunding overview
Funding rounds2 records
Investors3 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Fable M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Fable
What does Fable do?
Fable Security sells an enterprise SaaS human risk management platform that uses AI and behavioral science to reduce employee-driven cybersecurity risk. The platform synthesizes security telemetry from identity, endpoint, DLP, and browser tools to score employee risk, segment users into cohorts, and deliver AI-generated video briefings, nudges, chats, and phishing simulations through Slack, Microsoft Teams, and email in the flow of work. Customers purchase annual subscriptions sized by user count, with pricing determined via Order Forms.
Is Fable a public or private company?
Fable is a private company. It is classified as venture growth investor backed and is currently operating.
When was Fable founded?
Fable was founded in 2024. It employs 51 to 100 people.
Where is Fable based?
Fable is headquartered in San Francisco, United States, in the North America region.
How does Fable make money?
Two revenue lines are on record. SaaS Subscription is the primary driver. The others are professional Services.
Who are Fable's main competitors?
Direct peers on record are Curricula, KnowBe4, Hoxhunt, Living Security, NINJIO and CybSafe. Broad incumbents are Proofpoint Security Awareness, Microsoft Defender for Endpoint and SANS Institute. Abnormal Security is listed as an others.
Does Fable have an API?
No public API is recorded for Fable.
What industry is Fable in?
Fable's product category is Human Risk Management Software. Its primary akta.pro industry code is HDADAKAJ, Security Awareness & Phishing Simulation (Email/Collab-focused). Its NAICS code is 513210 and its SIC code is 7372.