Herd Security, a San Francisco-based AI platform for security and GRC teams, has raised $3M in seed funding led by Aspiron Ventures. The platform generates customized training content including text, videos, images, and phishing simulations from company policies and threat data. Funds will expand product categories, video generation, and partnerships.
AI Threats Fuel Training Investments
The raise aligns with heightened focus on AI-driven threats, as CyberNut closed $5M growth capital in January 2026 for K-12 security training. Herd Security targets enterprise GRC teams with agentic AI that ingests internal data for ongoing programs delivered via Slack and Teams. This contrasts static annual modules, addressing the shift to continuous awareness.
Annual Training Fails Against AI Risks
Traditional security training relies on yearly videos that employees ignore, leaving organizations vulnerable to evolving threats. Gartner predicts 40% of social engineering attacks will target the workforce by 2028, emphasizing human-layer weaknesses. Current solutions fall short as threats like deepfakes demand real-time adaptation beyond compliance checkboxes.
Agentic AI Builds Custom Content
Herd Security's platform uses agentic AI to create microlessons, phishing simulations, and deepfake training tailored to company context. It automates content from policies and feeds, distributing via workflows for behavior change. Unlike KnowBe4's simulation focus or Proofpoint's email integrations, Herd emphasizes creative generation for monthly engagement.
As OneBrief's team noted in coverage:
"Security training has never been limited by expertise, but by execution. Herd has truly transformed our approach to security training."
This enables security teams to produce videos and simulations in seconds, boosting retention over hour-long modules.
Cybersecurity Specialists Lead Round
Aspiron Ventures, a cybersecurity-focused VC, led the round with Team Ignite Ventures, ForwardSlash VC, Forum Ventures, Right Side Capital Management, and YPO members. Aspiron's niche expertise and exits like Airgap signal conviction in AI training against emerging threats. The syndicate blends cyber domain knowledge with B2B SaaS scaling support.
$10B Market Demands Continuous Tools
The security awareness training market stood at $5.6B in 2023, projected to reach $10B by 2027. Incumbents like KnowBe4 dominate phishing sims, while Infosec IQ and Hoxhunt offer interactive modules. Herd differentiates via AI for dynamic, policy-specific content amid the push from annual to ongoing programs.
Ex-Duo Founders Target Deepfakes
Founders hail from Duo Security, Cisco, and Panther Labs, bringing expertise in authentication and detection. Advisors include Vanta's co-founder and RunZero's CEO, adding GRC and asset management credibility. This team addresses AI-era threats like voice deepfakes with specialized simulations.
Expanding to HR and Partnerships
With SOC 2 Type II certification and customers like OneBrief and Outfox Health, Herd plans category expansion to HR and sales enablement. Recent Okta partnership and Finovate Best of Show award position it for broader GRC adoption. The funding fuels video generation enhancements and ecosystem integrations.