1. Computer Security Fundamentals
by Chuck Easttom
Chapter 10 Security Policies

2. Chapter 10 Objectives Recognize the importance of security policies
Understand the various policies and the rationale for them
Know what elements go into good policies
Create policies for network administration
Evaluate and improve existing policies
Explain what cyber terrorism is and how it has been used in some actual cases.
Understand the basics of information warfare.
Have a working knowledge of some plausible cyber terrorism scenarios.
Have an appreciation for the dangers posed by cyber terrorism.
© 2016 Pearson, Inc Chapter 10 Computer Security Policies

3. Introduction
Technology by itself cannot solve all network security problems.
Cyber terrorism, according to the definition of the FBI:
Premeditated, politically motivated attack against information, computer systems, computer programs, and data that results in violence against noncombatant targets by subnational groups or clandestine agents.
Typically, loss of life in a cyber attack would be less than in a bombing attack.
© 2016 Pearson, Inc Chapter 10 Computer Security Policies

4. Introduction (cont.)
Virus software won't prevent a user from manually opening an attachment and releasing a virus.
A technologically secured network is still vulnerable if former employees (perhaps some unhappy with the company) still have working passwords. Or if passwords are simply put on Post-it notes on computer monitors.
A server is not secure if it is in a room that nearly everyone in the company has access to.
Your network is not secure if end users are vulnerable to social engineering.
All these could lead to significant deaths: train wrecks, hospital deaths, loss of air traffic control resulting in plane crashes, and so forth.
© 2016 Pearson, Inc Chapter 10 Computer Security Policies

5. What Is a Policy?
A security policy is a document that defines how an organization deals with some aspect of security. There can be policies regarding end-user behavior, IT response to incidents, or policies for specific issues and incidents.
All these could lead to significant deaths: train wrecks, hospital deaths, loss of air traffic control resulting in plane crashes, and so forth.
© 2016 Pearson, Inc Chapter 10 Computer Security Policies

6. Defining User Policies
Passwords
Internet use
attachments
Installing/uninstalling software
Instant messaging
Desktop configuration
All these could lead to significant deaths: train wrecks, hospital deaths, loss of air traffic control resulting in plane crashes, and so forth.
© 2016 Pearson, Inc Chapter 10 Computer Security Policies

7. System Admin Policies New Employees Departing Employees Change Control
Access Control
All these could lead to significant deaths: train wrecks, hospital deaths, loss of air traffic control resulting in plane crashes, and so forth.
© 2016 Pearson, Inc Chapter 10 Computer Security Policies

8. Other Issues Bring Your Own Device
A major concern in the modern network
New Employees
Departing Employees
Bring your own device (BYOD) has become a significant issue for most organizations. Most, if not all, of your employees will have their own smart phones, tablets, smart watches, and Fitbits that they will carry with them into the workplace. When they connect to your wireless network, this introduces a host of new security concerns. You have no idea what networks that device previously connected to, what software was installed on them, or what data might be exfiltrated by these personal devices.
© 2016 Pearson, Inc Chapter 10 Computer Security Policies

9. Change Management RFC CAB Follow-up
© 2016 Pearson, Inc Chapter 10 Computer Security Policies

10. Software Development Policies
Security standards
Testing
© 2016 Pearson, Inc Chapter 10 Computer Security Policies

11. Incident Response Policies
Handling viruses
Dealing with breaches
All these could lead to significant deaths: train wrecks, hospital deaths, loss of air traffic control resulting in plane crashes, and so forth.
© 2016 Pearson, Inc Chapter 10 Computer Security Policies

12. Data Classification Public Secure
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13. BCP and DRP
DRP
BCP
BIA
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14. Fault Tolerance Backups RAID Full: All changes
Differential: All changes since last full backup
Incremental: All changes since last backup of any type
RAID
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15. Relevant Laws & Regulations
HIPAA
Sarbanes-Oxley
PCI
© 2016 Pearson, Inc Chapter 10 Computer Security Policies

16. Summary
In this chapter, you learned the technology is not enough to ensure a secure network. You must have clear and specific policies detailing procedures on your network. Those policies must cover employee computer resource use, new employees, outgoing employees, access rights, how to respond to an emergency, and even how secure code in applications and websites is.
User policies must cover all aspects of how the user is expected to use company technology. In some cases, such as instant messaging and web use, policies may be difficult to enforce, but that does not change that they must still be in place. If your user policies fail to cover a particular area of technology use, then you will have difficulty taking any action against any employee who performs that particular misuse.
© 2016 Pearson, Inc Chapter 10 Computer Security Policies