Package update cooldowns as a supply-chain defense

DavidWells · x · 2026-07-20

A practical defense against software supply-chain attacks: enforce package update cooldowns across ecosystems.

The shared resource argues that many prominent supply-chain compromises are exploited quickly but also detected quickly, and that a 3-day cooldown would have blocked most of the cited cases. The screenshot cites an analysis of ten major supply-chain attacks: eight had exploitation windows under a week, and all but one lasted under two weeks.

It also shows concrete ecosystem support, such as uv adding a built-in cooldown feature in v0.9.17, with native relative-duration syntax like uv pip install --exclude-newer '3 days' foo.

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