Does npm v12 stop supply-chain attacks entirely?
No. Cybernews reports security researchers call it "not enough": a compromised maintainer account can still publish malicious code as a trusted, signed release, and malicious logic hidden in a package's runtime code — triggered on import rather than install — passes through v12's defaults untouched.
Answered in
npm's Biggest Security Overhaul in 16 Years Is Here — Attackers Are Already Adaptingnpm v12 blocks install scripts, Git dependencies, and remote sources by default. Researchers say attackers are already routing around it.
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