幹壞事是進步最大的原動力
Twitter 上看到的奇怪實驗 XD
a student asked if two processes can kill each other by sending simultaneous signals; this program does that about 10% of the time on my Mac pic.twitter.com/neTQN4wj8B
— John Regehr (@johnregehr) October 25, 2017
here's the magic number for my Ubuntu 16.04 box, they kill each other ~20% of the time pic.twitter.com/UvSMyDYT6S
— John Regehr (@johnregehr) October 26, 2017
2013 的時候提過「加州的手機防竊提案...」，後來在 2015 年生效：
In a press release sent to reporters on Thursday, George Gascón said that since the law went into effect on July 1, 2015[,]
在兩大陣營都有類似的功能：
Such a kill switch has become standard in all iPhones ("Activation Lock") and Android phones ("Device Protection") since 2015.
而執行到現在已經兩年了，手機的失竊率下降不少：「San Francisco DA: Anti-theft law results in huge drop in stolen phones」。
[S]martphone-related robberies have fallen 22 percent from 2015 to 2016. When measured from the peak in 2013, "overall robberies involving smartphones have declined an astonishing 50 percent."
變成要找人殺肉才能處理，增加被竊後的處理難度與成本...
由於手機的行竊與搶劫案件已經是美國目前遇到的重大問題，所以有幾位法界人士提案，要立法強制對手機業者實作行動電話的防竊機制：「Proposed California Law Would Mandate Smartphone Kill Switch」，報導在「Proposed California law would mandate smartphone kill switch」。
希望藉由這套防竊機制，讓銷贓變得困難，希望藉此降低手機行竊與搶劫的案件數量...
Kill Switch 的機制並沒有詳細說明，不過應該就是類似目前 Apple 的方式？可以遠端強制對手機下鎖上甚至銷毀的命令...