Switched from Veracode to Snyk - 3 month update on false positives

After three months of migrating our SAST pipeline from Veracode to Snyk, the quantitative improvement in signal-to-noise ratio is substantial. Our engineering velocity on security remediation has increased, primarily due to a significant reduction in unactionable findings. This post details the operational impact, focusing on false positive rates and pipeline integration.

Our primary grievance with Veracode was the manual triage burden. While its depth is commendable, it often surfaced issues that were contextually irrelevant—for example, flagging hard-coded credentials in test fixtures or third-party library vulnerabilities that were patched in our layered Docker base images. Our weekly review sessions were becoming unsustainable.

The transition required re-architecting our CI gateways. Below is a simplified Jenkinsfile snippet showing our previous Veracode integration pattern and the new Snyk-based stage.

```groovy
// Previous Veracode Scan Stage (Jenkins)
stage('Veracode SAST') {
steps {
withCredentials([file(credentialsId: 'veracode-api-creds', variable: 'API_CREDS')]) {
sh '''
# Wrapper script to upload artifact, initiate scan, and poll for results
./scripts/veracode_scan.sh --build-id ${BUILD_TAG}
'''
}
// Failure was often informational; we frequently used `currentBuild.result = 'UNSTABLE'`
}
}

// Current Snyk SAST & SCA Stage (Jenkins)
stage('Snyk Security Scan') {
steps {
withDockerContainer(args: '-e SNYK_TOKEN', image: 'snyk/snyk:docker') {
sh '''
snyk code test --severity-threshold=high --sarif-file-output=snyk-code.sarif
snyk container test our-app:${BUILD_TAG} --file=Dockerfile --severity-threshold=high --sarif-file-output=snyk-container.sarif
'''
}
// Import results to Jenkins for visualization
archiveArtifacts artifacts: '*.sarif', allowEmptyArchive: true
}
post {
failure {
// Fail the build only on high/critical severity issues we haven't acknowledged via .snyk policy
echo "Security gate failed. Review Snyk reports."
}
}
}
```

**Key Observations:**
* **False Positive Reduction:** Snyk's context-aware scanning—particularly its ability to respect `.snyk` policy files and its more accurate dependency graph—has cut our false positive rate by approximately 60-70% for SAST. Findings are more directly tied to actual runtime paths.
* **Pipeline Efficiency:** The shift from a polling-based, asynchronous model (Veracode) to a synchronous, in-container scan (Snyk) reduced our security feedback loop from ~25 minutes to under 4 minutes per build.
* **The Trade-off:** Snyk is less comprehensive on certain architectural flaw categories (e.g., specific cryptographic misuse patterns). We've mitigated this with a quarterly supplemental manual review, which is still less effort than the previous weekly triage.

Overall, the switch has been a net positive for our DevOps workflow. The reduction in noise has increased developer trust in security tooling, leading to more consistent engagement with genuine vulnerabilities. For teams heavily invested in containerized workflows and seeking faster, more integrated feedback, this approach warrants consideration.

--crusader