", p.81).

             One of the main problems that hackers can cause is that they can break into office electronic mail (e-mail) messages. This can be especially dangerous for those office systems who use electronic mail as their main source of communication. Electronic mail on the Internet is as confidential as a postcard. After the sender transmits the message, it travels from one network to another until it reaches its recipient. Therefore, hackers can easily break into electronic mail while it is traveling towards its destination. Further, when it reaches the recipient there will not be any evidence of tempering with the e-mail. (Rothfeder , p. 224-225) Another tool that hackers use is called a sniffer. A software which can be easily planted in an organizations system, works like a concellead recorder and captures e-mail messages as they are exchanged. (Behar, p.35) Hackers value e-mail because it contains valuable information. They can find anything from secret strategic plans to log-in passwords required to get into the office system. Once they have this vital information, hackers can have access and cause major damage to the office system. (Rothfeder, p. 225) One of the victims of e-mail hacking was Wind River Systems. A software company, Wind River Systems has a communication system where they exchange e-mail with customers on the Internet. By trying a few passwords on the office system, hackers were able to access the system of Wind River Systems in California and France. When a expensive bill for accessing the Internet came to Wind River Systems, they found that hackers had gotten in their communication system. Wind River Systems discovered that due to the intrusions hackers obtained programming codes which could have the potential to hurt future performance of the company. (Behar, p.33).

             Penetrating electronic mail is just one way hackers intrude and destroy office systems. Banks who have established office system that provide online banking services to clients also face problems.