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Chapter 1 - Principles of Information Security 3nd Edition...

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1 Principles of Information Security, 3nd Edition
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Principles of Information Security, 3nd Edition 2 Define information security Relate the history of computer security and how it evolved into information security Define key terms and critical concepts of information security as presented in this chapter Discuss the phases of the security systems development life cycle Present the roles of professionals involved in information security within an organization Learning Objectives Upon completion of this material, you should be able to:
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Principles of Information Security, 3nd Edition 3 Introduction Information security: a “well-informed sense of assurance that the information risks and controls are in balance.” —Jim Anderson, Inovant (2002) Necessary to review the origins of this field and its impact on our understanding of information security today
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Principles of Information Security, 3nd Edition 4 The History of Information Security Began immediately after the first mainframes were developed Groups developing code-breaking computations during World War II created the first modern computers Physical controls to limit access to sensitive military locations to authorized personnel Rudimentary in defending against physical theft, espionage, and sabotage
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Principles of Information Security, 3nd Edition 5 Figure 1-1 – The Enigma
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Principles of Information Security, 3nd Edition 6 The 1960s Advanced Research Project Agency (ARPA) began to examine feasibility of redundant networked communications Larry Roberts developed ARPANET from its inception
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Principles of Information Security, 3nd Edition 7 Figure 1-2 - ARPANET
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Principles of Information Security, 3nd Edition 8 The 1970s and 80s ARPANET grew in popularity as did its potential for misuse Fundamental problems with ARPANET security were identified No safety procedures for dial-up connections to ARPANET Non-existent user identification and authorization to system Late 1970s: microprocessor expanded computing capabilities and security threats
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Principles of Information Security, 3nd Edition 9 The 1970s and 80s (continued) Information security began with Rand Report R-609 (paper that started the study of computer security) Scope of computer security grew from physical security to include: Safety of data Limiting unauthorized access to data Involvement of personnel from multiple levels of an organization
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Principles of Information Security, 3nd Edition 10 MULTICS Early focus of computer security research was a system called Multiplexed Information and Computing Service (MULTICS) First operating system created with security as its primary goal Mainframe, time-sharing OS developed in mid-1960s by General Electric (GE), Bell Labs, and Massachusetts Institute of Technology (MIT) Several MULTICS key players created UNIX Primary purpose of UNIX was text processing
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Principles of Information Security, 3nd Edition 11 The 1990s
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