Fable Security Inc.

Fable Security builds a human risk management platform that uses AI-generated, adaptive content — video briefings, interactive nudges, and targeted interventions — timed to reach employees precisely when their behavior increases organizational risk. The company’s premise is that traditional, static security-awareness training fails to change real-world behavior, so Fable focuses on continuous, individualized intervention rather than periodic compliance modules.

Launched publicly in 2025 with $31 million in funding from Greylock Partners and Redpoint Ventures, Fable was founded by Nicole Jiang and Dr. Sanny Liao, both early team members at Abnormal AI — giving the founding team direct experience building AI-driven email security before applying similar principles to human risk. The company already works with enterprises across finance, healthcare, logistics, and technology, and reports customer results including phishing-click reductions of more than 85%, PII-exposure reductions of 60%, and doubled engagement with post-training content.

Fable enters a human-risk-management category that already includes established players like KnowBe4 and newer entrants such as Dune Security, both pursuing similar real-time behavioral approaches. Its differentiation rests on founder pedigree and a well-capitalized launch rather than proven scale, and as a company that only launched in 2025, its long-term customer retention and independent efficacy data are still unproven.