First malicious Outlook add-in abused an abandoned domain to host a fake Microsoft login page, stealing 4,000+ credentials in ...

Security researchers uncover the first malicious Outlook add-in, hijacked to steal 4,000+ Microsoft credentials in new supply chain attack.

引言 缓存是工程师优化分布式系统时首先采用的工具之一。我们会缓存已完成的响应（如数据库查询结果或HTTP响应体），以避免重复执行昂贵的任务。然而，传统缓存未能解决一个经常被忽视的低效源头，即重复的进行中请求（duplicate in-flight request）。

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