One of the biggest developments in the fire alarm space in recent years has been the rise of smart tech – wi-fi connected alarms that reach you by phone, for example, if they sense smoke while you are out.
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我拿起她的小米手机，帮她设置了三道技术防线：第一，在设置里开启“禁止安装非官方应用来源”，从根本上杜绝了木马病毒的植入；第二，设置呼叫限制，拦截所有陌生号码的来电；第三，启用短信过滤，屏蔽非联系人发来的信息。
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