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• In the nineteenth century telegraphic communications between banks were typically secured by the case of codebooks. Here's a link to an example from the Bank of Montreal.
• The Enigma machine was supposedly originally developed in 1918 by Arthur Scherbius for the protection of banking communications.
• In chapter 22 of his book "The Codebreakers" David Kahn says that Elizabeth Friedman was employed by the IMF to set up a cryptographic system based around the one-time pad. He also notes that as late as 1958 banks were using codebooks rather than machine encipherment (describing one episode of insider threat enabled this).

• In the nineteenth century telegraphic communications between banks were typically secured by the case of codebooks. Here's a link to an example from the Bank of Montreal.
• The Enigma machine was supposedly originally developed in 1918 by Arthur Scherbius for the protection of banking communications.
• In chapter 22 of his book "The Codebreakers" David Kahn says that Elizabeth Friedman was employed by the IMF to set up a cryptographic system based around the one-time pad. He also notes that as late as 1958 banks were using codebooks rather than machine encipherment (describing one episode of insider threat enabled this).
• In the 1960s the IBM Cryptography Research Group in Yorktown Heights, NY was set up which would eventually lead to Horst Feistel's work on block ciphers, including the Lucifer cipher (forerunner to the Data Encryption Standard DES) which was used to secure Lloyd's Bank ATMs in 1971. The second chapter of Stephen Levy's book "Crypto" covers some of this work.

• In the nineteenth century telegraphic communications between banks were typically secured by the case of codebooks. Here's a link to an example from the Bank of Montreal.
• The Enigma machine was supposedly originally developed in 1918 by Arthur Scherbius for the protection of banking communications.

• In the nineteenth century telegraphic communications between banks were typically secured by the case of codebooks. Here's a link to an example from the Bank of Montreal.
• The Enigma machine was supposedly originally developed in 1918 by Arthur Scherbius for the protection of banking communications.
• In chapter 22 of his book "The Codebreakers" David Kahn says that Elizabeth Friedman was employed by the IMF to set up a cryptographic system based around the one-time pad. He also notes that as late as 1958 banks were using codebooks rather than machine encipherment (describing one episode of insider threat enabled this).

The Enigma machine was supposedly originally developed in 1918 by Arthur Scherbius for the protection of banking communications.

• In the nineteenth century telegraphic communications between banks were typically secured by the case of codebooks. Here's a link to an example from the Bank of Montreal.
• The Enigma machine was supposedly originally developed in 1918 by Arthur Scherbius for the protection of banking communications.