Venture with Grace Tobias Citron, Primary VC Partner on Cyber & AI Infrastructure
Jan 18, 2026
Tobias Citron, a Partner at Primary Venture Partners, specializes in cybersecurity investments and incubating AI startups. He discusses the fragmenting landscape of cybersecurity in the AI era, highlighting the emergence of new threats like deepfakes and AI-driven agents. Tobias also shares insights on pen testing transformed by AI, the evolution of security for robotics, and founder archetypes in cyber. He predicts a rise in agent-driven attacks and increased M&A activity, showcasing how innovation reshapes the startup ecosystem.
AI Snips
Chapters
Books
Transcript
Episode notes
Replace Episodic Pen Tests With Continuous AI
- Automate and continuous-test where manual, episodic processes like pen testing exist today.
- Tobias recommends using AI to lower cost, expand the market, and run continuous penetration testing rather than point-in-time reports.
Secure AI Agents With Identity And Course-Correction
- Build agent authentication, anomaly detection, and correction systems for agent security.
- Tobias urges founders to focus on agent identity, anomaly detection, and bringing misbehaving agents back on track.
Four Emerging Cyber Submarkets
- New subcategories will emerge: agent-native identity, insider risk, threat intel, and GPU/AI-hardware security.
- Tobias lists these as growing investment opportunities where AI changes attacker surface and infra needs new protections.
