Prime Security’s $20M Series A Pushes AI-Driven Product Security Forward

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What happened

Prime Security announced a $20 million Series A funding round led by Scale Venture Partners, with participation from Foundation Capital, Flybridge Ventures and Ofir Ehrlich (CEO & Founder of Eon). The investment will accelerate development and go-to-market expansion for its Agentic Product Security Platform, anchored by what the company calls the Agentic Security Architect, an autonomous AI system that embeds continuous security design reviews into engineering workflows.

Who is affected

Organizations building modern software, particularly those with large engineering teams, stand to be impacted. Early customers include PayPal, Qualtrics, Bumble, ThoughtSpot, and Redis Labs. These firms report improvements such as faster design-stage risk resolution and dramatically higher coverage of security assessments compared with traditional manual review processes.

Why CISOs should care

Traditional security reviews have lagged behind rapid, AI-assisted development, often leaving most planned work unassessed before release. Platforms like Prime’s aim to shift product security left into the design phase, automating what has typically been manual, resource-intensive work. This trend highlights a broader industry shift toward AI-assisted, continuous security practices, something CISOs should monitor as part of securing the software lifecycle.

3 practical actions

  1. Assess design-stage coverage: Audit your current product security pipeline and quantify what percentage of planned work receives design and architecture review before coding begins.
  2. Evaluate automation options: Investigate AI-assisted platforms (including agentic or similar tools) that can integrate with existing engineering workflows to expand coverage without adding manual workload.
  3. Align teams early: Strengthen collaboration between security and development teams by embedding security requirements and risk-assessment tasks earlier in the software development lifecycle, not just at the end.