The world’s biggest open-source ecosystem - npm - faced its first self-spreading worm.They called it Shai Hulud.It didn’t just infect one package. It infected developers themselves.When a maintainer got phished, the worm harvested credentials, hijacked tokens, and created new CI/CD workflows to keep spreading - automatically.No command-and-control. No manual uploads. Just a chain reaction across the npm registry.And while the world was busy shouting about “2.6 billion downloads affected,” this real threat was quietly exfiltrating GitHub, cloud, and npm secrets - right under everyone’s nose.This isn’t just another npm story.It’s the first-ever self-replicating supply chain worm - and a wake-up call for every developer and security team building in the open.Watch host Rob Maas (Field CTO, ON2IT) and Yuri Wit (SOC Analyst, ON2IT) break down how it started, how it spread, and how to make sure your pipeline isn’t the next one to go viral.(00:00) - Intro, welcome & what npm is

(00:01) - Crypto drainer: how it worked, maintainer phish & real impact

(00:05) - “Shai Hulud” worm: credential harvesting & package spread

(00:07) - Hype vs reality: the “2.6 billion downloads” myth & media reaction

(00:10) - Defenses: dependency strategy & CI/CD workflow alerts

(00:14) - Secrets hygiene, OS targeting (Windows exit), end-user/EDR tips & takeaways

Key Topics CoveredHow a maintainer phish and TOTP capture led to a crypto drainer in npm.Why Shai Hulud’s credential harvesting + CI/CD persistence makes it high-impact.Practical defenses: pin/review dependencies, CI/CD change alerts, secret rotation, egress monitoring.What developers vs. end users can (and can’t) do in supply-chain attacks.Got your attention? Subscribe to Threat Talks and turn on notifications for more content on the world’s leading cyber threats and trends.Guest and Host Links: Rob Maas (Field CTO, ON2IT): https://www.linkedin.com/in/robmaas83/  Yuri Wit (SOC Analyst, ON2IT): https://www.linkedin.com/in/yuriwit/   Additional Resources Threat Talks: https://threat-talks.com/ ON2IT (Zero Trust as a Service): https://on2it.net/ AMS-IX: https://www.ams-ix.net/ams npm: https://www.npmjs.com/ Node.js: https://nodejs.org/ GitHub Docs: Actions & Workflows: https://docs.github.com/actions MetaMask: https://metamask.io/ OWASP Dependency Management: https://owasp.org/www-project-dependency-check/ SLSA Supply-chain Levels for Software Artifacts: https://slsa.dev/Click here to view the episode transcript.

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