@NASAEarthMars That is quite an interesting story. We sent what appeared to be identical emails to all, but each was actually coded with either one or two spaces between sentences, forming a binary signature that identified the leaker.
@NASAEarthMars 这是一个非常有趣的故事。我们向所有人发送了看似相同的电子邮件，但实际上每封电子邮件都在句子之间添加了一个或两个空格，形成了一个二进制签名来识别泄密者。