4 Apr 2013

CASE STUDY QUESTION FROM CHAPTER 8 SECURING INFORMATION SYSTEMS




 CASE:



  1. What management, organization, and technology factors were responsible for McAfee’s software problem?
  2. What was the business impact of this software problem, both for McAfee and for its customers?
  3.  If you were a McAfee enterprise customer, would you consider McAfee’s response to the problem be acceptable? Why or why not?
  4. What should McAfee do in the future to avoid similar problems? 
 
ANSWER:

1.       Management Factor which causing the McAfee’s software is when the test simulation     were done, management didn’t run these for windows XP with service pack 3. Users using the McAfee Virus Scan were using Widows XP service pack 3 and the viruse scan version 8.7, these affected to faulty update download.

Organization Factor is when the staff didn’t work efficiently. McAfee update  the virus scan that was intended to deal with the new virus named ‘w32/wecorl.a”. but the company doesnt detect the problem that this virus could make itself appears as the name svchost.exe, which a windows file that is critical to PC’s performance.

Technology problem is without the svchost.exe, windows can’t boot properly. McAfee determined that the majority of affected machines were using windows XP  service pack 3 combined with MCAfee Virus scan 8.7. they also noted that  the “Scan Process on Enable” opyion of virus scan, off by default in most Virus scan installation, was turned on in the majority of effected computers.

 

2.      The business impact is the reputation to the McAfee company was dropped. Besides that, the customer also get the impact because the users’ computer were crippled or totally not functional.

 

3.      If i were an enterprise customer, I would consider McAfee’s response to the problem is not be acceptable. Because the slipup caused the system becomes unsecured. McAfee also makes a mistake that without the svchost.exe, windows can’t boot properly. Virus scan users applied the update, tried rebooting their systems, and were powerless to act as their systems went haywire, repeatedely rebooting, losing their network capabilities and their ability to detect USB drivrs, which is the only way of fixing affected computers.

 

4.     
They should implement the additional QA protocols for any releases that directly impact critical system files. McAfee is also rolling out additional capabilities in Artemis that will provide another level of protection against false positives by leveraging an expensive whitelist of critical system files and their associated cryptographic hashes.

Goupt Assigment:
  • Indah Purnamasari Eroika    C1L011007
  • Handhika Tiyakusuma          C1L011010
  • Parama Anisa Fajariko        C1L011016 
  • Santy Arlieza Wijayanti        C1L011021 

21 Mar 2013

INFORMATION SYSTEMS


Transaction processing systems
Process data resulting from business transactions , update operational database, and produce business documents. Examples : sales and inventory processing and accounting systems. Transaction processing system provide three functional areas:
  • System runtime functions, transaction processing system provide an execution environment that ensures the integrity, availabiliti, and securiti of data.
  • System administration functions, transaction processing system provide administrative support that lets user configure, monitor, and manage their transaction systems.
  • Application development functions, transaction processing systems provide functions for use in custom business application, including functions to acces data, to perform intercomputer communications, and to design and manage the user interface.

Process control systems
Monitor and Control industrial processes. Process control system also monitors the manufacturing environment and electronically controls the process or manufacturing flow nbsed on the various set-points given by the user. Examples : petroleum refining, power generation and steel production systems. 

Enterprise collaboration systems (ECS)
Support team, workgroup and enterprise communications and collaborations. ECS is also combination of groupware, tools, internet, extranets and other networks needed to support enterprise wide communications. Examples : e-mail, chat, and video conferencing groupware systems. 

Management Information systems (MIS)
Provide information in the form of prespecified reports and display to support business decision making.  MIS also are distinctfrom other information systems, in that they are used to analyze and facilitate strategic and operational activities. Examples : sale analysis, production performance, and cost trend reporting systems.

Decision support systems (DSS)
Provide interactive ad hoc support for the decision making processes of managers and other business professionals. serve the management, operations, amd planning levels of an organization and help to make decisions, which may be rapidly changing and not easily specified in advance. Examples : product pricing, profitability forecasting and risk analysis systems.

Executive information systems
provide critical information from MIS, DSS, and other sources tailored to the information needs of executives. Examples : systems for easy acces to analyses of business performance, actions of competitors, and economic developments to support strategic planning.

Expert systems
Knowledge based system that provide expert advice and act as expert consultants to users. ES are designed to solve complex problems by reasoning about knowledge, like an expert, and not following the procedure of a developer. Examples : credit application advisor, process monitor and diagnostic maintenance systems.

Knowledge management systems
Knwoledge based systems that support the creation, organization  and dissemination of business knowledge within the enterprise. Examples : intranet acces to best business practices, sales proposal strategies and customers problem resolution systems.

Strategic information systems
Support operations or management processes that provide a firm with strategic products, services, and capabilities for comptitie advantage.  Examples : online stock trading, shipment tracking and e-comerce web  systems.

Functional business systems
Support a variety of operational and managerial application  of the basic business function of a company, provide decision-makers feedback and information on the daily operation of the business. Example : information system that support applications in accounting, finance, marketing, operation management and human resources management.


REFERENCES:
Global  edition management information systems by O'brien Marakas
www.publib.ibm.com
www. brighthubengineering.com
www.webopedia.com
www.en.wikipedia.org