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Chap01 Foundations of Information Systems in BusinessAqib Syed
James A. O'Brien, and George Marakas. Management Information Systems with MISource 2007, 8th ed. Boston, MA: McGraw-Hill, Inc., 2007. ISBN: 13 9780073323091
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IBM Solutions..
http://assignment-partner.com/ .That's a sample paper - essay / paper on the topic "Information system infrastructure" created by our writers!
Disclaimer: The paper above have been completed for actual clients. We have acclaimed personal permission from the customers to post it.
The allure of incredibly powerful, easy-to-use handheld devices, constant global connectivity, and an app for everything have given rise to a stunning consumer-driven transformation of the IT landscape.
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The FREE LEADERSHIP FOLLOW UP LECTURE is designed to educate Nigerian youths on the essence good leadership in Nigeria which can bring real change from our corrupt elder statesmen to vibrant sound youths.
James A. O'Brien, and George Marakas. Management Information Systems with MISource 2007, 8th ed. Boston, MA: McGraw-Hill, Inc., 2007. ISBN: 13 9780073323091
James A. O'Brien, and George Marakas. Management Information Systems with MISource 2007, 8th ed. Boston, MA: McGraw-Hill, Inc., 2007. ISBN: 13 9780073323091
Chap01 Foundations of Information Systems in BusinessAqib Syed
James A. O'Brien, and George Marakas. Management Information Systems with MISource 2007, 8th ed. Boston, MA: McGraw-Hill, Inc., 2007. ISBN: 13 9780073323091
James A. O'Brien, and George Marakas. Management Information Systems with MISource 2007, 8th ed. Boston, MA: McGraw-Hill, Inc., 2007. ISBN: 13 9780073323091
Information technology uses in insurance industrySujay Kumar
Purpose
Efficiency
Convenience
Information technologies' role in General Insurance
How Is Information Technology Used inLife Insurance?
Challenges Faced
What needs to be done?
IBM Solutions..
http://assignment-partner.com/ .That's a sample paper - essay / paper on the topic "Information system infrastructure" created by our writers!
Disclaimer: The paper above have been completed for actual clients. We have acclaimed personal permission from the customers to post it.
The allure of incredibly powerful, easy-to-use handheld devices, constant global connectivity, and an app for everything have given rise to a stunning consumer-driven transformation of the IT landscape.
FREE LEADERSHIP FOLLOW UP LECTURE by Protrainers global NetworkD G Business School
The FREE LEADERSHIP FOLLOW UP LECTURE is designed to educate Nigerian youths on the essence good leadership in Nigeria which can bring real change from our corrupt elder statesmen to vibrant sound youths.
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Download from here:
https://drive.google.com/open?id=0B5QIosG1CvkcWXN0OWtrUXBWWHc
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MIS chap # 9.....
1. ORGANIZATIONAL NEEDS FOR SECURITY
& CONTROL
Experience inspired industry to:
Place security precautions aimed at
eliminating or reducing the opportunity of
damage or destruction.
Provide the organization the ability to continue
operations after disruption.
Patriot Act and the Office of Homeland
Security
1st
issue is security vs. individual rights.
2nd
issue is security vs. availability (i.e.,
HIPPA). 1
2. INFORMATION SECURITY
System security
focuses on protecting hardware, data,
software, computer facilities, and personnel.
Information security
describes the protection of both computer and
non-computer equipment, data, and
information from misuse by unauthorized
parties.
Includes copiers, faxes, all types of media,
paper documents
2
3. OBJECTIVES OF
INFORMATION SECURITY
Information security is intended to achieve three
main objectives:
Confidentiality:
protecting a firm’s data and information from disclosure to
unauthorized persons.
Availability:
making sure that the firm's data and information is only available
to those authorized to use it.
Integrity:
information systems should provide an accurate representation of
the physical systems that they represent.
Firm’s information systems must protect data
and information from misuse, ensure availability
to authorized users, display confidence in its
accuracy. 3
4. MANAGEMENT OF INFORMATION
SECURITY
Information security management (ISM)
is the activity of keeping information resources
secure.
Business continuity management (BCM)
is the activity of keeping the firm and its
information resources functioning after a
catastrophe.
Corporate information systems security
officer (CISSO)
is responsible for the firm’s information systems
security.
Corporate information assurance officer
(CIAO)
reports to the CEO and manage an information
assurance unit. 4
5. INFORMATION SECURITY
MANAGEMENT
Concerned with formulating the firm’s information
security policy.
Risk management
approach is basing the security of the firm’s information
resources on the risks (threats imposed) that it faces.
Information security benchmark
is a recommended level of security that in normal
circumstances should offer reasonable protection against
unauthorized intrusion.
Benchmark is a recommended level of performance.
Defined by governments and industry associations
What authorities believe to be components of a good
information security program.
Benchmark compliance
is when a firm adheres to the information security benchmark
and recommended standards by industry authorities.
5
7. THREATS
Information security threat
is a person, organization, mechanism, or event that
has potential to inflict harm on the firm’s
information resources.
Internal and external threats
Internal include firm’s employees, temporary workers,
consultants, contractors, and even business partners.
As high as 81% of computer crimes have been
committed by employees.
Internal threats present potentially more serious
damage due to more intimate knowledge of the system.
Accidental and deliberate acts 7
9. TYPES OF THREATS
Malicious software (malware)
consists of complete programs or segments of code that can invade a
system and perform functions not intended by the system owners (i.e.,
erase files, halt system, etc.).
Virus
is a computer program that can replicate itself without being observable
to the user and embed copies of itself in other programs and boot sectors.
Worm
cannot replicate itself within a system, but it can transmit its copies by
means of e-mail.
Trojan horse
is distributed by users as a utility and when the utility is used, it
produces unwanted changes in the system’s functionality; can’t replicate
nor duplicate itself.
Adware
generates intrusive advertising messages.
Spyware
gathers data from the user’s machine.
9
10. RISKS
Information security risk is a potential
undesirable outcome of a breach of
information security by an information
security threat.
all risks represent unauthorized acts.
Unauthorized disclosure and threats
Unauthorized use
Unauthorized destruction and denial of
service
Unauthorized modifications 10
11. E-COMMERCE CONSIDERATIONS
Disposable credit card (AMEX) – an action aimed at 60 to
70% of consumers who fear credit card fraud arising from
Internet use.
Visa’s 10 required security practices for its retailers plus 3
general practices for achieving information security in all
retailers’ activities.
Cardholder Information Security Program (CISP)
augmented these required practices.
11
12. RISK MANAGEMENT
Defining risks consists of four substeps.
Identify business assets to be protected from risks.
Recognize the risks.
Determine the level of of impact on the firm should the risks
materialize.
Analyze the firm’s vulnerabilities.
Impact severity can be classified as:
Severe impact puts the firm out of business or severely limits its
ability to function.
Significant impact causes significant damage and cost, but the firm
will survive.
Minor impact causes breakdowns that are typical of day-to-day
operations.
12
13. TABLE 9.1 DEGREE OF
IMPACT AND VULNERABILITY
DETERMINE CONTROLS
13
14. RISK ANALYSIS REPORT
The findings of the risk analysis should be
documented in a report that contains
detailed information such as the following
for each risk:
A description of the risk
Source of the risk
Severity of the risk
Controls that are being applied to the risk
The owner(s) of the risk
Recommended action to address the risk
Recommended time frame for addressing the
risk
What was done to mitigate the risk
14
15. INFORMATION SECURITY POLICY
The five phases of
implementing:
Phase 1: Project Initiation.
Phase 2: Policy Development.
Phase 3: Consultation and
Approval.
Phase 4:Awareness and
Education.
15
17. CONTROLS
Control is a mechanism that is implemented to
either protect the firm from risks or to minimize
the impact of risks on the firm should they occur.
Technical controls are those that are built into
systems by the system developers during the
systems development life cycle.
Include an internal auditor on project team.
Based on hardware and software technology.
17
18. TECHNICAL CONTROLS
Access control is the basis for security against
threats by unauthorized persons.
Access control three-step process includes:
User identification.
User authentication.
User authorization.
User profiles-descriptions of authorized users;
used in identification and authorization.
18
20. TECHNICAL CONTROLS (CONT’D)
Intrusion detection systems (IDS)
recognize an attempt to break the security
before it has an opportunity to inflict
damage.
Virus protection software that is effective
against viruses transported in e-mail.
Identifies virus-carrying message and warns
user.
Inside threat prediction tools classify
internal threats in categories such as:
Possible intentional threat.
Potential accidental threat.
Suspicious.
Harmless.
20
21. FIREWALLS
Firewall acts as a filter and barrier that restricts the flow of data to and
from the firm and the Internet. Three types of firewalls are:
Packet-filtering are routers equipped with data tables of IP addresses
that reflect the filtering policy positioned between the Internet and the
internal network, it can serve as a firewall.
Router is a network device that directs the flow of network traffic.
IP address is a set of four numbers (each from 0 to 255) that uniquely
identify each computer connected to the Internet.
Circuit-level firewall installed between the Internet and the firm’s
network but closer to the communications medium (circuit) than the
router.
Allows for a high amount of authentication and filtering to be
performed.
Application-level firewall located between the router and computer
performing the application.
Allows for full power of additional security checks to be performed.21
23. CRYPTOGRAPHIC AND
PHYSICAL CONTROLS
Cryptography is the use of coding by means of
mathematical processes.
The data and information can be encrypted as it resides in
storage and or transmitted over networks.
If an unauthorized person gains access, the encryption
makes the data and information unreadable and prevents
its unauthorized use.
Special protocols such as SET (Secure Electronic
Transactions) perform security checks using digital
signatures developed for use in e-commerce.
Export of encryption technology is prohibited to Cuba,
Iran, Iraq, Libya, North Korea, Sudan, and Syria.
Physical controls against unauthorized intrusions such as
door locks, palm prints, voice prints, surveillance cameras,
and security guards.
Locate computer centers in remote areas that are less
susceptible to natural disasters such as earthquakes, floods,
and hurricanes.
23
24. FORMAL CONTROLS
Formal controls include the
establishment of codes of conduct,
documentation of expected procedures and
practices, monitoring, and preventing
behavior that varies from the established
guidelines.
Management denotes considerable time to
devising them.
Documented in writing.
Expected to be in force for the long term.
Top management must participate
actively in their establishment and
enforcement.
24
25. INFORMAL CONTROLS
Education.
Training programs.
Management development programs.
Intended to ensure the firm’s employees both understand and
support the security program.
Good business practice is not to spend more for a control
than the expected cost of the risk that it addresses.
Establish controls at the proper level.
25
26. GOVERNMENT AND
INDUSTRY ASSISTANCE United Kingdom's BS7799. The UK standards establish a set of baseline
controls. They were first published by the British Standards Institute in 1995,
then published by the International Standards Organization as ISO 17799 in
2000, and made available to potential adopters online in 2003.
BSI IT Baseline Protection Manual. The baseline approach is also followed by
the German Bundesamt fur Sicherheit in der Informationstechnik (BSI). The
baselines are intended to provide reasonable security when normal protection
requirements are intended. The baselines can also serve as the basis for higher
degrees of protection when those are desired.
COBIT. COBIT, from the Information Systems Audit and Control Association
and Foundation (ISACAF), focuses on the process that a firm can follow in
developing standards, paying special attention to the writing and maintaining of
the documentation.
GASSP. Generally Accepted System Security Principles (GASSP) is a product of
the U. S. National Research Council. Emphasis is on the rationale for establishing
a security policy.
ISF Standard of Good Practice. The Information Security Forum Standard of
Good Practice takes a baseline approach, devoting considerable attention to the
user behavior that is expected if the program is to be successful. The 2005 edition
addresses such topics as secure instant messaging, Web server security, and virus
protection.
26
27. GOVERNMENT LEGISLATION
Both United States and United Kingdom established
standards and passed legislation aimed at
addressing the increasing importance of information
security.
U.S. Government Computer Security Standards.
Set of security standards organizations should meet.
Availability of software program that grades users’
systems and assists them in configuring their systems to
meet standards.
U.K. Anti-terrorism, Crime and Security Act
(ATCSA) 2001.
27
28. INDUSTRY STANDARDS
Center for Internet Security (CIS) is a
nonprofit organization dedicated to
assisting computer users to make their
systems more secure.
CIS Benchmarks help users secure their
information systems by implementing
technology-specific controls.
CIS Scoring Tools enables users to calculate
their security level, compare it to benchmarks,
and prepare reports that guide users and
system administrators to secure systems. 28
29. PROFESSIONAL CERTIFICATION
Beginning in the 1960s the IT profession began
offering certification programs:
Information Systems Audit and Control Association
(ISACA)
International Information System Security
Certification Consortium (ISC)
SANS (SysAdmin, Audit, Network, Security) Institute
29
30. BUSINESS CONTINUITY
MANAGEMENT
Business continuity management
(BCM) are activities aimed at continuing
operations after an information system
disruption.
This activity was called disaster
planning, then more positive term
contingency planning.
Contingency plan is the key element in
contingency planning; it is a formal
written document that spells out in detail
the actions to be taken in the event that
there is a disruption, or threat of
disruption, in any part of the firm’s
30
31. CONTINGENCY SUBPLANS
Emergency plan specifies those measures that
ensure the safety of employees when disaster
strikes.
Include alarm systems, evacuation procedures, and fire-
suppression systems.
Backup plan is the arrangements for backup
computing facilities in the event that the regular
facilities are destroyed or damaged beyond use.
Backup can be achieved by some combination of
redundancy, diversity, and mobility.
Vital records are those paper documents,
microforms, and magnetic and optical storage
media that are necessary for carrying on the
firm’s business.
Vital records plan specifies how the vital
records will be protected and should include
offsite backup copies.
31