Issue No.02 - Feb. (1974 vol.7)
Lee Danner , IBM System Development Division
Data security is the protection of data against unauthorized disclosure, modification, restriction, or destruction. Recognition1 that data in a computer system must be protected was a development brought on by three factors which caused a significant increase in the vulnerability of computer systems.
Lee Danner, "Data security in the computer communication environment", Computer, vol.7, no. 2, pp. 23-31, Feb. 1974, doi:10.1109/MC.1974.6323455