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From the the Senate Intelligence Committee:
"Any computer connected to or containing modems that allow external connectivity to computer networks such as the Internet. Such computers are vulnerable to attacks by unauthorized persons." the report said.
From the Philadelphia Inquirer:
A survey by the Sans Institute, a Bethesda, Md., research group, said network security administrators earned $56,442 a year on average in 1999, an increase of 11.47 percent from 1998.
- "Computer security has been important for many years, but the recent increase in online retailing and business-to-business transactions has made it a top priority."
- "Last month's . . . attacks help yet another few people learn about the perils of security," said Rob Kolstad, Sans Institute program manager.
Any business that wants to build an e-commerce presence and have an internal network (intranet) connected to the internet will have to address certain needs:
With a dial-up modem (33.6 K, 56 K) the transfer rates are dependable. If you establish a connection to your provider, your ability to "surf" the internet and accomplish other tasks is generally consistent. The overall speed or transfer rate is slower than a cable modem or DSL, but there are exceptions to take note of, and we will mention those in the other sections.
A stand alone computer using a dial-up modem connection poses no security risk to an office network, since there are no wires running between the stand alone and other computers. This is by far the lowest cost way to go with connectivity, but if efficiency becomes a problem, then other technologies offer better solutions.
Cable Modems generally achieve speeds up to 512 K. The main exception to this is that a cable subscriber's bandwidth is shared with the "neighborhood". This means that other cable internet subscribers in your immediate vicinity are sharing your pipeline. This can cause painstakingly slow transfer rates during peak hours or because of extraordinary usage. The security offered by cable modems is nil. There are more and more cases of systems being compromised through cable connections. No one is immune, and many attacks are automated with no specific target in mind.
Currently DSL offers speeds from 128 Kbps. A range of speeds is available with faster connections costing increasing amounts of money per month.
There are two types of DSL: ADSL and SDSL or Asymmetrical and Symmetrical. The biggest difference between the two is that ADSL does not allow for bi-directional high speed movement. In other words, although you may be able to receive files, or surf the internet at high speeds, you cannot send information out very rapidly.
SDSL does allow high speeds in both directions, but is more costly.
DSL technology, in general, offers very little in the way of built-in security.
Some email and web browser programs also pose serious threats to internet security. Users of these kinds of programs owe it to themselves to be educated about these issues.
A combination of measures must be implemented to have the best chance of
securing one's systems. Experience has shown that these measures
In the case when an on-site administratior is needed, this item will have to treated as budgeting for a full-time employee.