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Let's Talk It Through - Signal > Telegram >= WhatsApp > WeChat
但凡是个Messaging App都说自己secure，说是挺容易的，你倒是真干呐
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如果国家卫星系统被入侵
There is always this myth that a cyber incident is between two groups of hackers who wear old-fashioned hoddies doing crazy stuff. Come on people... it is never like this. NEVER!
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The Good, the Bad and the Ugly
给国际红十字会做系统安全，我看到的、想到的、感受到的。