Is Cursor Safe?
Cursor is safe as an AI-powered code editor. Local-first development means your code stays on your machine. Main concern is reviewing AI-generated code for security issues before deployment.
Local Development Model
Unlike cloud-based AI builders, Cursor runs locally. Your code is not automatically deployed anywhere. You maintain full control over what gets committed and deployed, giving you the opportunity to review for security issues.
Security Considerations
Code Context Sharing
Cursor sends code context to AI models for suggestions. Use privacy mode for sensitive projects or review their data handling policies.
AI-Generated Vulnerabilities
Like all AI coding tools, suggestions may contain security flaws. Always review generated code before committing.
Extension Security
As a VSCode fork, third-party extensions have the same trust model. Be cautious with unfamiliar extensions.
Credential Handling
AI may suggest hardcoding credentials. Always use environment variables and secrets management.
Security Assessment
Strengths
- + Local-first development - code stays on your machine
- + No automatic code deployment or hosting
- + VSCode-based with familiar security model
- + You control what code is committed and deployed
- + Privacy mode available for sensitive codebases
Concerns
- - AI suggestions may introduce vulnerabilities
- - Codebase context sent to AI for suggestions
- - Generated code quality varies
- - Developer must still review for security issues
The Verdict
Cursor is safe for development use. The local-first model gives you full control over your code and deployment. Use privacy mode for sensitive projects, review AI suggestions for security issues, and follow standard secure development practices. The tool itself doesn't introduce deployment risks - security depends on how you use the generated code.
Related Resources
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