tech
January 14, 2026
AI security firm, depthfirst, announces $40 million series A
The company used an AI-native platform to help companies fight threats.

TL;DR
- Cybercriminals are using AI to enhance their attacks, while defenders are using AI for protection.
- Security startup Depthfirst has raised $40 million in a Series A funding round.
- The funding was led by Accel Partners with participation from SV Angel, Mantis VC, and Alt Capital.
- Depthfirst's platform, General Security Intelligence, is an AI-native suite for analyzing codebases and workflows.
- The platform helps companies protect against credential exposures and monitor threats to open-source and third-party components.
- The company plans to use the funds for hiring in research, engineering, product, and sales.
- Co-founders have backgrounds at companies like Databricks, Amazon, Square (Block), and Google DeepMind.
- AI can be used for malicious processes like writing malware, social engineering, and vulnerability scanning.
- Depthfirst aims to protect against AI-driven exploits and has partnerships with AngelList, Lovable, and Moveworks.