A token and a database password in one commit
Both files are staged, the hook runs nosecrets scan --staged. The commit stops (exit status 1); the report names file, line, rule and a masked preview, never the secret itself.
A token and a database password in one commit
site/captures/usecases/leaked-key/# .env
APP_ENV=production
DATABASE_URL=postgres://admin:Tr0ub4dor-and-3@db.internal:5432/app
# deploy.py
import requests
GITHUB_TOKEN = "ghp_R2kT9xLm4Qv7Bn3Zc8Wd5Hf1Jg6Ys0AaPeXq"
def release(version):
return requests.post(
"https://api.github.com/repos/acme/app/releases",
headers={"Authorization": f"token {GITHUB_TOKEN}"},
json={"tag_name": version},
)$ git add deploy.py .env $ nosecrets scan --staged .env:2:31 [HIGH] Postgres Connection URI (postgres-connection-uri) nsi_31013ade6422 preview: Tr0... deploy.py:3:17 [CRITICAL] GitHub Personal Access Token (github-pat) nsi_5e31772c2cb9 preview: ghp_...PeXq $ echo $? 1