Is Cursor safe?
Cursor is an AI-augmented code editor, not a shipping platform. The security question is about the code you write with it — and a few platform-specific risks.
Cursor itself is safe to use. The code it helps you write has the same AI-code security risks as any other AI-assisted workflow — ~45% of unreviewed AI suggestions contain a bug.
How it fails in production
Accepting suggestions without review
The fastest way to ship bugs. Every AI-generated block should be treated as a junior engineer's first draft.
Context-window leakage (low risk)
Cursor sends relevant code to the model provider. Your repo .cursorignore should exclude secrets and regulated data.
Custom model endpoints bypassing review
Cursor's custom-endpoint feature lets teams route to self-hosted models. Verify the endpoint's TLS + access controls.
How to ship safely on Cursor
- Review every AI suggestion for security patterns (auth, input validation, secrets)
- Configure .cursorignore for secrets, regulated data, and customer PII
- Pair Cursor with a PR-time security scanner (Securie) — the second pass catches what humans miss
Every PR gets a security review regardless of how it was authored. Cursor + Securie is the modern dev-tool pairing.
Verdict
Cursor is safe. The code you ship with Cursor needs the same review + scan discipline as any other codebase.