Exaforce Lands $125M to Expand AI Security Platform

The big picture: Exaforce, a Bay Area company building an AI-native platform for security operations, has raised $125 million in a Series B funding round, bringing its total raised to $200 million.

Why it matters:

• Evolving Threats: AI-assisted attacks increased by 72% compared to 2024, and phishing attempts surged 1,265% as attackers adopted generative AI tools.
• Real-time Adaptation: Enterprises now face threats that adapt in real time, requiring security tools that can keep pace rather than merely react.
• Proactive Defense: Most security tools respond to attacks after the fact, a reactive approach that is no longer fast enough for the current threat landscape.

How it works:

• Knowledge Graph: Exaforce constructs and continuously updates a real-time security knowledge graph, linking security events to user identities, access permissions, and cloud activity before an alert fires.
• Reduced Investigation Time: This proactive approach reduces investigation time by a factor of ten compared to conventional AI SOC tools, as relevant context is immediately available.
• Enhanced Accuracy: Agents follow verified connections between events, identities, and resources, producing fewer false alarms and more reliable recommendations for incident response.

The catch: The AI security sector is highly active, with 144 deals closing in 2025, making it the most active investment category in cybersecurity. While Exaforce is well-funded, it faces intense competition from both established cybersecurity vendors integrating AI and other well-capitalized startups vying for market share in a rapidly evolving threat landscape.