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CHAPTER 4 Information Security
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Announcements Project 2 – due today before midnight Tuesday Class Quiz 1 – Access Basics Questions/Comments
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Security is constantly evolving… Cyber Security 101 Symantec Threats 2014
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Personal Security How secure are you? Do you secure your information? How hackable is your digital life?
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Key Information Security Terms Information Security Vulnerability Threat Exposure/Attack
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Introduction to Information Security © Sebastian/AgeFotostock America, Inc. Is it possible to secure the Internet?
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Five Factors Increasing the Vulnerability of Information Resources 1. Today’s interconnected, interdependent, wirelessly-networked business environment 2. Smaller, faster, cheaper computers and storage devices 3. Decreasing skills necessary to be a hacker 4. Organized crime taking over cybercrime 5. Lack of management support
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1. Networked Business Environment Threat of untrusted networks Largest is the Internet
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2. Smaller, Faster Devices © PhotoEdit/Alamy Limited © laggerbomber-Fotolia.com © Dragonian/iStockphoto
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3. Decreasing Skills Needed to be a Hacker New & Easier Tools make it very easy to attack the Network Attacks are becoming increasingly sophisticated © Sven Taubert/Age Fotostock America, Inc.
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4. Organized Crime Taking Over Cybercrime © Stockbroker xtra/AgeFotostock America, Inc. Cost of Cybercrime Any Guesses? http://www.mcafee.com/us/resources/reports/rp-economic-impact-cybercrime2.pdf
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5. Lack of Management Support © Sigrid Olsson/Photo Alto/Age Fotostock
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Categorizing Security Threats Security Threats: Unintentional and Deliberate
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Unintentional Threats: Most Dangerous Employees Who are the most dangerous employees? Why are these the most dangerous?
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Unintentional Threats: Human Errors Common Human Mistakes: Carelessness Devices E-mails Internet Poor password selection and use Ex. Bank Employees 2014 worst passwords Any guesses on #1?
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Unintentional Threats: Human Errors
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Unintentional Threats: Social Engineering the art of manipulating people into performing actions or divulging confidential information. Pretexting Phishing Baiting Vishing (IVR or phone phishing)
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Deliberate Threats to Information Security Theft of equipment or information Examples Dumpster diving Laptop stolen from breaking in Identify theft Stealing info off org. databases Phishing
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Deliberate Threats (continued) Software attacks Virus Worm (see the rapid spread of the Slammer worm)Slammer worm Trojan horse Logic Bomb Phishing attacks Distributed denial-of-service attacks Ex. US BanksUS Banks
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Deliberate Threats (continued) Alien Software Spyware Spamware Cookies Targeted Attack Supervisory control and data acquisition (SCADA) attacks Stuxnet © Manfred Grafweg/Age Fotostock America, Inc.
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What Organizations Are Doing to Protect Themselves “The only truly secure system is powered off, cast in a block of concrete, and sealed in a lead room with armed guards, and even then I have my doubts”
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What Organizations Are Doing to Protect Themselves How do you protect your own networks?
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Information Security Controls 1. Physical controls 2. Access controls 3. Communications (network) controls
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Information Security Controls 1. Physical controls 2. Access controls 3. Communications (network) controls Access Controls
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Access Controls: Authentication (proof of identity) Something the user is Something the user has Something the user does Something the user knows passwords passphrases
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Access Controls: Authorization Permissions issued based on verified identity Privilege – operations that users can perform Idea of Least privilege
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Information Security Controls 1. Physical controls 2. Access controls 3. Communications (network) controls Communication Controls
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Communications Controls Firewalls Anti-malware systems Whitelisting and Blacklisting Encryption VPN
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Communications Controls -Firewalls Home Corporate China Firewall
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Controls: Encryption (PKI) How Public Key Encryption Work s
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Communication or Network Controls Virtual private networking Employee monitoring systems
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Protection of data Government Regulations HIPPA Sarbanes-Oxley PA74
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Need to understand Risk Risk Management (identify, control, minimize) 1. Risk analysis 2. Risk mitigation (take action) 1. 2. 3. 3. Controls Evaluation control > cost of asset then the control is not cost effective © Youri van der Schalk/Age Fotostock America, Inc.
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Business Continuity Planning, Backup, and Recovery Provide guidance to people who keep business operating after a disaster occurs. Options: Hot Site Warm Site Cold Site
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Personal Risk Assessment To understand your own risk, get with another person and create an assessment. List out the following: 1. Assets (e.g. laptop, external drive, etc.) 2. Threats (e.g. natural, virus, etc.) 3. Controls (how do you control threats) Other ways to minimize personal risk
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Personal Risk Assessment Internet Explorer
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LEARNING OBJECTIVES 1. Identify the five factors that contribute to the increasing vulnerability of information resources, and provide a specific example of each one. 1. Networked Environment 2. Size and cost of devices 3. Decreasing skills necessary to be a hacker 4. Organized crime taking over cybercrime 5. Lack of management support
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LEARNING OBJECTIVES 2. Compare and contrast human mistakes and social engineering, and provide a specific example of each one.
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LEARNING OBJECTIVES (continued) 3. Define the three risk mitigation strategies, and provide an example of each one in the context of you owning a home. 1. 2. 3.
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LEARNING OBJECTIVES (continued) 4. Identify the three major types of controls that organizations can use to protect their information resources, and provide an example of each one.
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