Shai-Hulud Returns: When Software Trust Becomes the Attack Surface

The August 2026 npm worm compromised one of the JavaScript ecosystem's most-used caching libraries and spread to more than 400 packages within hours. It is the maturing of a trend in which the software build pipeline, and the trust mechanisms meant to protect it, have become the attack surface. This is what changed in the attackers' tradecraft and what CISOs should do about it.

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