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.

AI security firm, depthfirst, announces $40 million series A

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.