Bedienungsanleitung Compaq Ipaq 3630 wireless security (Seite 3 von 30) (Englisch)

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Wireless Security White Paper 3

Introduction

Wireless networks connect computers in offices or homes to other computers, or to devices such

as printers, by using radio or infrared signals instead of cables and jacks. Since wireless networks

dispense with cables, users connected to wireless computer networks (or wirelessly connected to

computer networks) can roam around with the machines they use to gain access to such networks.

This ability to function in "untethered" mode is a great convenience.

Users and corporations are using wireless technologies at astonishing rates to take advantage of

the benefits of wireless-enabled productivity to gain and maintain a competitive edge. Market

researcher Cahners In-Stat estimates that 6.2 million wireless devices will be shipped worldwide

this year (2001), and double that in two years.

The pervasiveness of sending and receiving data via wireless networks to the Internet and

corporate intranets has presented users of access devices and corporations with new concerns

about vulnerability to security breaches. Wireless access technologies have been called "one of

the newest and potentially most dangerous security holes in U.S. business."

Experts estimate that

most of the wireless networks in operation today have no security whatsoever. This is so in part

because many users are not aware of specific security vulnerabilities or don’t understand the

magnitude of potential loss and, therefore, do not put the appropriate measures in place. This

paper will look at the pieces of the “pipe” of access from the device to the corporate firewall in an

attempt to bring an awareness to both the user and the corporate IT manager as to where the

security vulnerabilities lie and what can be done to improve security. Many of the vulnerabilities

can be alleviated easily by implementing policies for users and adding security layers to the pipe.

To put the subject of wireless security into context, the paper is organized as follows: First,

securing wireless systems in general is discussed, then securing each point along the access pipe

is discussed.

A significant part of wireless network security overlaps with security designed for wired

networks. This is particularly so where firewalls, virtual private networks, and corporate servers

are concerned. Please see the Compaq Technical Guide titled “Safe Computing and E-Business:

Protecting the Enterprise to Assure E-Business Success”

(http://activeanswers.compaq.com/ActiveAnswers/Render/1,1027,1317-6-100-225-1,00.html

February, 2000) for important detail on best practices and established technologies for managing

corporate network security.

For complete wireless and mobile security solutions, please contact Compaq Global Services at

http://www.compaq.com/services/index_infrastructure.html

Security in General

It is important to realize from the outset that no single measure may be adequate to address

security in wirelessly enabled networks. Both wired and wireless security implementations must

be constantly evaluated and improved as people find new ways to gain unauthorized access to

sensitive data. To plan a security business model, key elements of security must be considered as

each point of access is examined.

Lee Gomes, "Often unguarded wireless networks can be eavesdroppers’ gold mine" (Wall Street Journal Online, April 27, 2001).

Gomes.

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Compaq Ipaq 3630 wireless security Seite 3

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