Altman warns of open-source cyberattack wave; Byrnes backs selling frontier defense
beffjezos · x · 2026-09-16
Sam Altman warns that open-source models capable of serious cyber damage are "not that far away," urging everyone to harden their systems during the window of advantage while leaving open source untouched. ARC's Steven Byrnes (beffjezos) endorses the approach: labs should sell top-tier frontier models for cyber defense, all systems should be hardened, and open source shouldn't be hampered — stability holds as long as a capabilities gap and defense spending persist.
Related event: Altman warns open-source models near serious-harm capability(2 posts)→
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