Encryption, Changing of data to make it unreadable, Decryption, Unscrambling of data to make it readable, Cipher, A special key used to unscramble data, Morse Code, Encryption method using a series of DOTs and DASHES, Number Replacement, Encryption method that replaces the alphabet with numbers, Ceaser Cipher, Encryption method that substitutes letters by shifting the alphabet, Keypad Cipher, Encryption method that replace letters with the numbers on a phone

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