Proctecting against Threats to Enterprise Network Security

By Gellis, Harold C. | The CPA Journal, July 2004 | Go to article overview

Proctecting against Threats to Enterprise Network Security


Gellis, Harold C., The CPA Journal


Life has been revolutionized by computer networks and the Internet. Vital sectors of the economy depend upon networks and the Internet for their existence. The financial, health, and government sectors, for example, all rely on networks for their daily operations. Banks transfer money electronically through the banking system's Automated Clearing House Network. Medicare uses an electronic system for patients' billings. And the Teachers' Retirement System of New York and the Social Security Administration make pension payments electronically into pensioners' bank accounts. The Internet also plays an indispensable role in the economy. Witness the explosion in electronic commerce between individuals, businesses, and other organizations. Companies like Amazon, eBay, and other online stores are representative of this new model.

The proliferation of wireless and mobile devices, cellphones, wireless modems, and pagers has created a mobile society consisting of millions of telecommuters, field workers, traveling sales personnel, and home-office workers. Users can connect to their office networks from hotels, airports, and other remote locations, as well as from home.

The very features of connectivity and accessibility that make networks and the Internet so indispensable to contemporary society, however, create dangerous and unforeseen consequences.

Dangers to the Enterprise

Security threats to an enterprise are much higher because of network interconnectivity and mobility. Cisco Systems, a leading provider of security services, maintains that remote users accessing corporate networks are more exposed than ever to attack from the outside. A personal computer on a network is a common point of attack. A user's laptop can also become infected through a remote Internet connection, and then infect the entire network. Some security threats include viruses, worms, Trojan horses, and denial-of-service attacks.

Viruses consist of computer code that secretly reproduce on other computers and perform destructive acts such as deleting files and clogging network performance. Worms are destructive programs, usually hidden in e-mail attachments, that shut down computers and networks. Trojan horses are unauthorized computer instructions hidden in a legitimate program that perform secret or damaging activities. Denial-of-service attacks overload an Internet service provider's e-mail server with hundreds of e-mail messages per second, causing it to shut down, or causing a network or web server to crash.

Last August, Blaster, a worm, shut down 120,000 systems in three minutes and eventually shut down businesses around the world. Slammer, another worm, spread worldwide in 11 minutes and infected 55 million hosts per second. According to Cisco, the cost of viruses and worms is approximately $13 billion a year.

Another insidious threat to an enterprise is hacking. Most businesses are susceptible to attack from both outside hackers and internal personnel. Unauthorized users can break into an organization's network to steal information or create damage. Hackers often target business and financial institutions possessing information that can be further exploited. The names, addresses, credit information, and Social Security numbers of a company's employees or customers can be stolen by hackers in order to rob bank accounts, obtain false credit cards, or perpetrate other fraudulent acts. Hackers, especially terrorists and rogue governments, also target military, government, and financial networks and can create political and economic havoc. Internal hackers might be disgruntled employees that delete corporate files. The proliferation of these illegal and dangerous activities has become a matter of grave concern for industry and government alike.

Protecting the Enterprise

An enterprise's network, information systems, databases, and processes are essential for the enterprise's survival and must be protected from both internal and external threats. …

The rest of this article is only available to active members of Questia

Already a member? Log in now.

Notes for this article

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Default project is now your active project.
Project items

Items saved from this article

This article has been saved
Highlights (0)
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

Citations (0)
Some of your citations are legacy items.

Any citation created before July 30, 2012 will labeled as a “Cited page.” New citations will be saved as cited passages, pages or articles.

We also added the ability to view new citations from your projects or the book or article where you created them.

Notes (0)
Bookmarks (0)

You have no saved items from this article

Project items include:
  • Saved book/article
  • Highlights
  • Quotes/citations
  • Notes
  • Bookmarks
Notes
Cite this article

Cited article

Style
Citations are available only to our active members.
Buy instant access to cite pages or passages in MLA, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited article

Proctecting against Threats to Enterprise Network Security
Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this article

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Help
Full screen

matching results for page

    Questia reader help

    How to highlight and cite specific passages

    1. Click or tap the first word you want to select.
    2. Click or tap the last word you want to select, and you’ll see everything in between get selected.
    3. You’ll then get a menu of options like creating a highlight or a citation from that passage of text.

    OK, got it!

    Cited passage

    Style
    Citations are available only to our active members.
    Buy instant access to cite pages or passages in MLA, APA and Chicago citation styles.

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

    1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

    Cited passage

    Thanks for trying Questia!

    Please continue trying out our research tools, but please note, full functionality is available only to our active members.

    Your work will be lost once you leave this Web page.

    Buy instant access to save your work.

    Already a member? Log in now.

    Oops!

    An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.