Updated Secret Code Hides Messages in the Letters Themselves!

I remember passing notes in grade school. Oh, the thrill of exchanging “secret” messages with friends. In reality, teachers and classmates saw it happening and were probably super annoyed. Not to mention the repercussions if the message were intercepted. But now, there’s a better way to keep your messages secret. A group of computer scientists from Columbia University created FontCode — a way to unobtrusively hide secret messages in the very shapes of printed letters themselves. That mean
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