The Hidden Risk Inside Your Build Pipeline: When Open Source Becomes an Attack Vector | A Conversation with Paul McCarty | Redefining CyberSecurity with Sean Martin

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1d ago 40:14

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⬥EPISODE NOTES⬥

Modern application development depends on open source packages moving at extraordinary speed. Paul McCarty, Offensive Security Specialist focused on software supply chain threats, explains why that speed has quietly reshaped risk across development pipelines, developer laptops, and CI environments.

JavaScript dominates modern software delivery, and the npm registry has become the largest package ecosystem in the world. Millions of packages, thousands of daily updates, and deeply nested dependency chainsഴ് often exceeding a thousand indirect dependencies per application. That scale creates opportunity, not only for innovation, but for adversaries who understand how developers actually build software.

This conversation focuses on a shift that security leaders can no longer ignore. Malicious packages are not exploiting accidental coding errors. They are intentionally engineered to steal credentials, exfiltrate secrets, and compromise environments long before traditional security tools see anything wrong. Attacks increasingly begin on developer machines through social engineering and poisoned repositories, then propagate into CI pipelines where access density and sensitive credentials converge.

Paul outlines why many existing security approaches fall short. Vulnerability databases were built for mistakes, not hostile code. AppSec teams are overloaded burning down backlogs. Security operations teams rarely receive meaningful telemetry from build systems. The result is a visibility gap where malicious code can run, disappear, and leave organizations unsure what was touched or stolen.

The episode also explores why simple advice like “only use vetted packages” fails in practice. Open source ecosystems move too fast for manual approval models, and internal package repositories often collapse under friction. Meanwhile, attackers exploit maintainer accounts, typosquatting domains, and ecosystem trust to reach billions of downstream installations in a single event.

This discussion challenges security leaders to rethink how software supply chain risk is defined, detected, and owned. The problem is no longer theoretical, and it no longer lives only in development teams. It sits at the intersection of intellectual property, identity, and delivery velocity, demanding attention from anyone responsible for protecting modern software-driven organizations.

⬥GUEST⬥

Paul McCarty, NPM Hacker and Software Supply Chain Researcher | On LinkedIn: https://www.linkedin.com/in/mccartypaul/

⬥HOST⬥

Sean Martin, Co-Founder at ITSPmagazine and Host of Redefining CyberSecurity Podcast | On LinkedIn: https://www.linkedin.com/in/imsmartin/ | Website: https://www.seanmartin.com

⬥RESOURCES⬥

LinkedIn Post: https://www.linkedin.com/posts/mccartypaul_i-want-to-introduce-you-to-my-latest-project-activity-7396297753196363776-1N-T

Open Source Malware Database: https://opensourcemalware.com

OpenSSF Scorecard Project: https://securityscorecards.dev

⬥ADDITIONAL INFORMATION⬥

✨ More Redefining CyberSecurity Podcast:

🎧 https://www.seanmartin.com/redefining-cybersecurity-podcast

Redefining CyberSecurity Podcast on YouTube:

📺 https://www.youtube.com/playlist?list=PLnYu0psdcllS9aVGdiakVss9u7xgYDKYq

📝 The Future of Cybersecurity Newsletter: https://www.linkedin.com/newsletters/7108625890296614912/

Contact Sean Martin to request to be a guest on an episode of Redefining CyberSecurity: https://www.seanmartin.com/contact

⬥KEYWORDS⬥

paul mccarty, sean martin, software, supplychain, appsec, npm, javascript, ci, malware, opensource, redefining cybersecurity, cybersecurity podcast, redefining cybersecurity podcast

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