Black October: Lessons from the Downstream Breaches
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Ranked by a public rubric, not by votes: what a comment adds counts, not who wrote it. How comments are ranked · Comment rules
Summary
The author, a security incident responder writing under the handle @magoo, recounts helping many downstream victims of "Black October," a wave of breaches in October 2026 that hit developer and infrastructure platforms and spread through a hub-and-spoke pattern via leaked long-lived credentials.