Within Amazon, an official system ranks the severity of its internal emergencies. A Sev-5 is a relatively inconsequential technical problem that can be solved by engineers in the course of the workday. A Sev-1 is an urgent problem that sets off a cavalcade of pagers (Amazon still gives them to many engineers). It requires an immediate response, and the entire situation will later be reviewed by a member of Bezos’s management council, the S Team. Then there’s an entirely separate kind of crisis, what some employees have informally dubbed the Sev-B. That’s when an e-mail containing the notorious
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