Part 1
“The 20th century FBI acronym MICE summarizes the four main reasons why some individuals prove willing to abandon existing loyalties and work secretly for a hostile agency: Money, Ideology, Compromise and Ego.
“Al-Kindi was the leading figure in the invention of what is now called cryptanalysis, the science of decrypting ciphered messages without prior knowledge of the cipher(popularly, if not quite accurately, known as code-breaking).”