AI Security Firm Depthfirst Secures $40 Million Series A

The new funding aims to combat AI-powered cyber threats with advanced security intelligence.

Depthfirst, an AI security firm founded in October 2024, has raised $40 million in Series A funding. The company's General Security Intelligence platform helps businesses defend against AI-driven cyberattacks by scanning codebases and monitoring third-party components.

Mark Ellison

By Mark Ellison

January 15, 2026

3 min read

AI Security Firm Depthfirst Secures $40 Million Series A

Key Facts

  • Depthfirst, an AI security firm, raised $40 million in Series A funding.
  • Accel Partners led the investment round.
  • The company's platform, General Security Intelligence, is an AI-native suite.
  • Depthfirst helps companies scan codebases, protect credentials, and monitor third-party components.
  • The new capital will be used to hire staff for research, engineering, product, and sales.

Why You Care

Are you worried about AI making cyberattacks more ? Cybercriminals are increasingly using artificial intelligence to automate their attacks. This new reality demands smarter defenses. Depthfirst, an AI security firm, just announced a significant $40 million Series A funding round. This investment means more tools are coming to protect your digital assets from these evolving threats.

What Actually Happened

Depthfirst, established in October 2024, recently secured a substantial $40 million in Series A funding. Accel Partners led this investment, according to the announcement. Other participants included SV Angel, Mantis VC, and Alt Capital, as detailed in the blog post. The company offers a system called General Security Intelligence. This is an AI-native collection designed to help companies. It scans and analyzes codebases and workflows for potential vulnerabilities. What’s more, the company reports that this system protects against credential exposures. It also monitors threats from open-source and third-party components.

Why This Matters to You

Cybersecurity is no longer just about traditional firewalls. It’s about intelligent defense against intelligent attacks. This new funding allows Depthfirst to expand its capabilities. It means more protection for businesses like yours. Imagine you run an e-commerce site. Your security team can use Depthfirst’s system. It will scan your website’s code for AI-generated malware. It also checks for vulnerabilities in third-party plugins. This proactive approach can save you from costly breaches.

Here’s how Depthfirst’s system benefits companies:

  • Codebase Analysis: Scans for hidden vulnerabilities and malicious code.
  • Credential Protection: Safeguards sensitive login information from exposure.
  • Third-Party Monitoring: Tracks threats within open-source and external components.

“We’ve entered an era where software is written faster than it can be secured,” said Qasim Mithani, Depthfirst’s co-founder and CEO, as part of the announcement. He added that automation has changed how bad actors execute their attacks. “AI has already changed how attackers work. Defense has to evolve just as fundamentally.” How prepared is your organization for these AI-driven threats?

The Surprising Finding

What’s particularly striking is the speed at which AI is changing both attack and defense strategies. The technical report explains that cybercriminals are using AI for a whole range of malicious processes. This includes writing malware, conducting social engineering attacks, and scanning for vulnerabilities. This rapid adoption of AI by attackers challenges the assumption that defenders always have the upper hand. The company’s leadership, however, brings significant expertise. Qasim Mithani previously worked for Databricks and Amazon. Daniele Perito was director of security and risk engineering at Square. Andrea Michi, the CTO, was an engineer at Google DeepMind. Their combined experience in both AI and security is crucial. It positions Depthfirst to counter these threats effectively.

What Happens Next

Depthfirst plans to use its new capital strategically. The company intends to hire additional staff, according to the announcement. These new hires will focus on applied research and engineering. They will also bolster product and sales teams. This expansion suggests new features and broader market reach within the next 12-18 months. For example, imagine a small startup building a new AI application. Depthfirst’s enhanced system could offer them an affordable, AI-native security approach. This would be available from late 2026. This growth is vital for the cybersecurity industry. It ensures that defensive AI tools can keep pace with offensive AI capabilities. Your business should consider evaluating AI-native security solutions. This will help you stay ahead of emerging threats.

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