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wireless and microwave technology

Need help with answering the following two questions:

1) What are the security concerns with wireless and microwave technology?

2) Is a cashless society possible? Practical? Desirable? Please explain in detail.

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1) What are the security concerns with wireless and microwave technology?

Some of the most common security concerns with wireless and microwave technologies are:

Because wireless communication is broadcast over radio waves, eavesdroppers who merely listen to the airwaves can easily pick up unencrypted messages. These passive intruders put businesses at risk of exposing sensitive information to corporate espionage.

Further, the theft of an authorized user's identity poses one the greatest threats on Wireless networks. Existing encryption standards are not foolproof and allow knowledgeable intruders
to hack into secure wireless networks easily.

source: http://www.airdefense.net/wlans/risks.shtm

Further, due to lack of foolproof security measures, wireless technologies are often insecure and not the preferred medium to conduct financial transactions or exchange information fo sensitive nature.

The heart of the security problem in the wireless security setting is that networks are at heart an amalgam of independent processing units and the architecture itself is resistant to controls. The very ease of access, flexibility of expansion and evolution that makes the wireless world so successful make it highly vulnerable from a security standpoint.

Ease of access itself ...

Solution Summary

What are the security concerns with wireless and microwave technology?

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