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The above button links to Coinbase. Yahoo Finance is not a broker-dealer or investment adviser and does not offer securities or cryptocurrencies for sale or facilitate trading. Coinbase pays us for ...
面试官问你怎么防短信被刷，别开口就是"前端倒计时"——一开口就暴露了段位。先把这六道防线按从外到内的顺序捋出来。 美团二面，面试官把咖啡杯一放："你们线上短信接口被薅羊毛，一夜刷掉 5 万，你准备从哪几个层面防？" 我心里一稳——上家真吃过这亏，差点被 HR 约谈。这题不是考你会不会写 @RateLimiter，是考你从验证码到签名到蜜罐到网关兜底的全链路肌肉。 第1层｜滑块验证的后端二次校验：前 ...
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