Dependency Firewall On-Device

Continuous Cyber Defense

depthfirst combines deep context from code to production with autonomous AI agents that continuously discover, fix, and prevent security risks.

Trusted by security teams at the frontier

Self-learning security that gets smarter over time, bringing you to inbox zero.

Customers resolving all critical issues within 90 days
42%
Novel malware detection in dependencies
<3.5 min
Positive sentiment from developers on findings and fix recommendations
>70%

The depthfirst security operating system is built for how modern security teams work.

  1. Dependency Firewall blocks malicious packages. Security Reviewer validates every human and AI-generated code change before vulnerabilities, sensitive data, or malware enter your codebase.

  2. Code Scanner reasons across business logic, data flow, and exploit chains to uncover issues other tools miss.

  3. Agentic Pentester validates findings against your running application, so you only fix what’s exploitable. Security Reviewer generates merge-ready pull requests that fit into your existing workflow.

  4. Agentic Pentester replays the same attack after every merge to verify the vulnerability is fully resolved.

One intelligent platform to detect, validate, and remediate security issues across your software.

depthfirst security operating system dashboard
  1. Code

    Find real vulnerabilities by tracing business logic, data flows, and cross-service interactions across your codebase.

    Replacing Traditional SAST

    depthfirst reasons about business logic and cross-service data flows the way a security engineer does, so the only findings you see are the ones that are genuinely exploitable.

  2. Dependency Firewall

    Detect malicious behavior before it spreads through your environment.

  3. Agentic Pentesting

    Confirm which vulnerabilities are exploitable by testing your running application with real attack paths.

    Replacing Manual pentesting, Traditional DAST

    depthfirst attacks your running applications continuously, proving at runtime which vulnerabilities are actually exploitable and re-testing every fix after merge.

  4. Supply Chain

    Trace risk through your full dependency tree and surface only the vulnerabilities with a real execution path to them.

    Replacing Traditional Static SCA

    depthfirst traces every dependency to the code that actually calls it, so you fix the handful of vulnerabilities with a real path into your application instead of the whole SBOM.

  5. Secrets & Sensitive Data

    Detect and validate credentials across your codebase, CI/CD pipelines, and runtime environments.

Fully integrated into developer workflows so you don’t need to leave where you work to stay secure on depthfirst.

Advancing AI research. We develop and train efficient, security-specific agents that power every depthfirst product.

How dfbench works

dfbench: detection

Recall

20% 30% 40% 50% 60% 70% $0.30 $1 $3 $10 $30 $100 dfs-large1 GPT 5.6 Sol GPT 5.6 Luna Opus 5 Opus 5.5 Grok 4.5 Grok 4.7 Kimi K3 Qwen 3.8 GLM 5.2 DeepSeek v4 Flash Gemini 3.6 Flash Mythos 5 Gemini 3.8 Flash Muse Spark 1.3 DeepSeek v4.1 Flash GPT 6 Luna GPT 6 Sol MiMo-v2.6 Flash MiMo-v2.6 Pro

Cost per task

Figure 1: Vulnerability recall across a security scope, against cost per task. The ideal agent sits in the top left corner. Unless otherwise specified, all models are run on our internal harness.
Every dfbench datapoint, by model and thinking level
Detection results
Thinking
dfs-large1 — $6.77 62.2%
GPT 5.6 Sol xhigh $43.37 65.7%
GPT 5.6 Sol high $26.47 59.6%
GPT 5.6 Sol med $9.51 48.9%
GPT 5.6 Luna xhigh $2.53 52.4%
GPT 5.6 Luna high $1.57 39.6%
GPT 5.6 Luna med $0.69 28%
Opus 5 high $22.66 45.4%
Opus 5 med $21.89 47.8%
Opus 5.5 high $8.42 54.9%
Opus 5.5 med $7.66 48.1%
Grok 4.5 high $7.70 57.2%
Grok 4.7 xhigh $19.94 59.0%
Grok 4.7 high $16.02 56.6%
Kimi K3 max $9.10 48%
Kimi K3 high $6.22 46.7%
Qwen 3.8 max $7.91 40.8%
GLM 5.2 xhigh $9.72 40.7%
GLM 5.2 high $4.09 38.2%
DeepSeek v4 Flash max $1.23 31.8%
DeepSeek v4 Flash high $1.03 30.1%
Gemini 3.6 Flash high $7.44 20.9%
Mythos 5* — $99.19 69%
Gemini 3.8 Flash high $8.03 44.2%
Muse Spark 1.3 xhigh $10.24 47.4%
DeepSeek v4.1 Flash high $1.69 57.3%
GPT 6 Luna xhigh $0.43 45.7%
GPT 6 Luna high $0.28 38.1%
GPT 6 Luna med $0.15 37.3%
GPT 6 Sol xhigh $13.30 59.3%
GPT 6 Sol high $6.45 57.7%
GPT 6 Sol med $3.43 49.6%
MiMo-v2.6 Flash — $0.86 53.5%
MiMo-v2.6 Pro — $1.38 55%

These results will be updated as new models and harnesses are released.

* Run with Claude Security.

depthfirst platform discovered, validated, and remediated hundreds of CVEs from open source projects.

193
CVEs detected, discovered, validated and remediated using the depthfirst platform
64
Popular open source projects are scanned and analyzed by depthfirst platform