Is Vercel safe?
Vercel's platform security is excellent. The security questions are about what you deploy on it.
TL;DR
Vercel is safe. It ships with HTTPS, HSTS, platform-level protections. Your app's security is your own.
How it fails in production
Environment variables leaked client-side
Any NEXT_PUBLIC_ variable ships to the browser.
Access tokens leaked
A Vercel access token grants deploy + env-read access. See /leak/vercel-access-token.
Preview environments pointing at production data
Preview deploys with prod DB urls expose data to any PR reviewer.
How to ship safely on Vercel
- Review env var prefixes — secrets never NEXT_PUBLIC_
- Rotate Vercel access tokens on team departure
- Preview deploys use preview-database URLs, not prod
- Install Securie's Vercel Integration
What Securie covers
Securie integrates natively with Vercel. Pre-deploy scanning + access-token detection + preview-env audit all first-class.
Verdict
Vercel is safe. Your Vercel deployments are safe to the extent you scan them.