Pinprick code hides the secret message in a seemingly ordinary letter/message. Letters from the secret message are marked out by placing a pinprick underneath each.
A dot below each letter can work as well if you don't have a pin. You just have to make sure that all the letters you mark out with pinpricks are in the right order for your secret message to make sense.
Example:
Someone leave a bouquet of flowers on your desk with a card in it. What's written on the card?
A vengeful soul is like a lighted candle,
• • • •
it can't hurt you if you'll stay away from it;
• • • • •
but the one who started the flame
• •
should be cognizant of its danger.
• • •from: stuck_n_silence
•You didn't know what it means until you notice the pinpricks underneath some letters. You smiled after getting the message.
Hidden message:
Sunday_two AM_See u...

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CODES & CIPHERS
Non-FictionCompilation of codes, ciphers & some abbreviations to shorten the message before encrypting them. Learn the easiest way to remember Morse Code too.