Matthew Green: only ~5% of vulnerable software covered during the 4-month defender window

matthew_d_green · x · 2026-10-24

Matthew Green distills his critique of how AI labs opened frontier cyber capabilities: during a critical four-month window when defenders had almost exclusive access, at most 5% of vulnerable software got covered. He says it isn't entirely the labs' fault, but admits the effort fell far short of what we'll wish we'd done.

Related event: Cryptographer Matthew Green: Only ~5% of Vulnerable Software Fixed in 4-Month Window(2 posts)→

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