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Topic 1 - Information Security and the SDLC

Topic 1 - Information Security and the SDLC - Learning...

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Principles of Information Security, 2nd Edition 2 Understand the definition of information security Comprehend the history of computer security and how it evolved into information security Understand the key terms and critical concepts of information security as presented in the chapter Outline the phases of the security systems development life cycle Understand the roles of professionals Learning Objectives Upon completion of this material, you should be able to:
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Principles of Information Security, 2nd 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, 2nd 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, 2nd Edition 5 Figure 1-1 – The Enigma
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Principles of Information Security, 2nd Edition 6 The 1960s Advanced Research Procurement 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, 2nd Edition 7 Figure 1-2 - ARPANET
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Principles of Information Security, 2nd 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
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Principles of Information Security, 2nd Edition 9 R-609 Information security began with Rand Report R-609 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, 2nd Edition 10 R-609 Current concern for network threats points- Rand 609- 1, Oct 1979
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Principles of Information Security, 2nd Edition 11 The 1990s Networks of computers became more common; so too did the need to interconnect networks Internet became first manifestation of a global network of networks In early Internet deployments, security was treated as a low priority
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Principles of Information Security, 2nd Edition 12 The Present The Internet brings millions of computer networks into communication with each other —many of them unsecured Ability to secure a computer’s data influenced by the security of every computer to which it is connected
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Principles of Information Security, 2nd Edition 13 What is Security?
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