Securing the Software Supply Chain

Developer Machines
Where your developers and agents work
Code Repos
Where every code change lands
CI/CD Pipelines
Where your software gets built
Prevent, detect, and respond to supply chain attacks across every stage of software delivery. From the first line of code your team writes to the final build you ship, StepSecurity provides end-to-end defense.
Powered by a dedicated threat intelligence team that has detected and disclosed some of the largest supply chain attacks in the industry.
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Unaddressed Software Supply Chain Security Risks Leave Companies Open to Compromise

Breaking News -- Software Supply Attack Chains on the Rise

March 2026

axios Compromised on npm

Supply Chain Attack

Hijacked maintainer account used to publish poisoned axios releases injecting a hidden dependency that drops a cross-platform remote access trojan on install. attack

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March 2026

Trivy Compromised

Malicious trivy-action exfiltrated CI/CD secrets to an attacker-controlled domain for 12 hours. A fake trivy binary release was also published to GitHub Releases.

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Shai Hulud- The Second Coming

Nov 2025

Malware

March 2025

tj-actions/changed-files action is compromised

Application Security

Learn how StepSecurity Harden-Runner detected the tj-actions/changed-files supply chain attack

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“StepSecurity’s cutting-edge security features are a core part of Mercari’s supply chain security strategy. Adding these isolation, monitoring and governance capabilities to our platform has enabled Mercari’s Security Engineering team to spend more time focusing on the areas that are truly unique to our enterprise.”
“Before StepSecurity, detecting the origin of a suspicious outbound network connection was challenging with traditional CNAPPs or IDS solutions, as we’d only see a general alert. StepSecurity gives us complete visibility into which specific Action triggered a connection and even lets us drill down into host processes tied to that Action. Now, we have a clear and actionable picture of every network connection our runners make, and we can respond with confidence.”
"StepSecurity provided an immediate large scale effect by providing a single pane-of-glass visibility into all traffic egressing from our GitHub Actions CI/CD infrastructure. This provided immediate real-world visibility and enhanced our ability to detect and respond to incidents."
"It's easy to get started with GitHub Actions, but using it securely has historically required manual effort and configuration which isn't as straightforward. StepSecurity solves this by automating security best practices for Workflows as well as through their harden-runner Action which provides protection against exfiltration and source code tampering throughout the lifecycle of a Workflow. Leveraging the harden-runner Action is both painless and an absolute must for any project!"
StepSecurity has filled a critical gap in our CI/CD security stack. It gave us visibility into what our GitHub Actions runners are actually doing, not just what they’re configured to do. StepSecurity is now an integral part of how Neon secures its CI/CD pipelines.
One Platform. Every Layer.

Attackers hit every layer of your pipeline. So do our defenses.

Independent security controls at every stage of software delivery, so an attacker who slips past one layer is caught at the next. Here is how that plays out against the supply chain attacks that actually happened.

Dev Machines
Dev Machine
Guard
Code Repos
GitHub
Checks
CI/CD
Harden
Runner
CI/CD
GitHub
Actions
Everywhere
Threat
Center
Everywhere
Secure
Registry
Miasma Worm Targets AI Coding Agents
AI coding agents · Jun 2026
Shai-Hulud npm Worm Campaigns
OSS Dependencies · 2025-26
axios Compromised on npm
OSS Dependencies · Mar 2026
Trivy Compromised
CI/CD + Dev machine · Mar 2026

Experience the StepSecurity Difference

Without StepSecurity

  • AI coding agents operate without security controls
  • No visibility into developer machine supply chain risks
  • Reactive response to OSS package compromises
  • No runtime monitoring for GitHub Actions Runners
  • Manual vetting of third-party actions and dependencies

With StepSecurity

  • AI agent and MCP server monitoring and control
  • Complete visibility from dev environment to production
  • Proactive detection of compromised OSS packages
  • Real-time threat detection and response for GitHub Actions Runners
  • Automated security policies and remediation