Fable Security

Fable Security develops a human risk management platform that addresses security vulnerabilities caused by employee behavior and human error. The company was founded by Nicole Jiang and Sanny Liao, who previously worked in product and data science roles at Abnormal Security, where they observed that organizations remained vulnerable to preventable human errors despite having advanced cybersecurity technology stacks. The platform combines engineering, behavioral science, and artificial intelligence to detect risky employee behaviors and provide targeted security education. Rather than relying on traditional security awareness training, Fable's approach focuses on changing actual behavior patterns through personalized interventions. The system uses AI to generate security training content tailored to specific employees who demonstrate risky behaviors, prioritizing and automating responses to human risk incidents. Fable emerged from stealth mode in 2025 with $31 million in funding from investors including Greylock Partners and Redpoint Ventures. The company targets enterprise organizations that need to reduce their human attack surface. Their platform integrates into security workflows to help security teams identify, prioritize, and remediate human-related security risks in real-time. The solution is designed to move beyond traditional security awareness programs by delivering actionable behavioral change rather than just knowledge transfer.