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Meet Replit Security Agent

calendar_today April 21, 2026 person domain replit

Replit gives professionals a secure place to build with AI. Replit Agent already protects your apps as you build by automatically scanning for vulnerabilities, and audits dependencies, before your projects are ever published.

Before coding agents, a full pre-launch security review meant additional weeks of back-and-forth: coordinating with security engineers, reviewing reports, and manually fixing issues.

Today, we are introducing Replit Security Agent, which lets you you complete a comprehensive security review of your app in under an hour. Security Agent acts on a customizable threat modeling plan to review your entire codebase. It also uses a unique hybrid approach, leveraging Semgrep and HoundDog.ai as tools to improve the accuracy of its findings.

Daghan Atlas, Head of Product at Semgrep, shares: “The most effective security is the kind that works seamlessly. Replit’s Security Agent is a great example of what’s possible when you pair the contextual reasoning of LLMs with the determinism and program analysis capabilities of Semgrep. We’re excited to see this combination in the hands of Replit’s massive builder community.”

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