其实，易格曼不是只在小说里呈现了这个概念，2006年，他真正开发了一项“死亡开关”(Deathswitch)的服务，服务会定期向用户发送邮件，以确认他们还好好地活着。
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Legacy Locker, Asset Lock and Deathswitch are among the firms offering 20 encrypted space for people to store their passwords and other information.
“遗物守护者”、“财产锁定”和“死亡开关”等公司都提供加密空间，让人们保存他们的密码以及其他信息。
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Deathswitch and Slightly Morbid also offer similar services in a variety of prices and packages, depending on how many accounts are involved.
CNN: New services promise online life after death
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