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Essay on Analyze Intrusion Detection in Today's Networks
Local and wide area computer networks can support dense, bounded groups, through computerized conferencing and distribution lists in which all can send and receive messages with all. Indeed, many organizations put tight boundaries around their computer networks to inhibit communication from leaving the organizational precincts and to forestall intrusion. Technical constraints may also reinforce tight boundaries. At present, multimedia systems such as Cavecat and its descendants, Telepresence and Corel Vision, only have the ability to support videoconferencing among a small set of participants who also have the necessary equipment. Participants are aware of who is available for interaction through slow-scan video snapshots and can then use computer commands to establish video links with another person or even a small group.
Many computer networks support unbounded social networks because both private email and computerized conferences makes it easy and inexpensive to maintain connections with distant acquaintances and form new ties with strangers. Such "weak ties" are usually better connected to other, more diverse social circles, and hence are more apt to be sources of new information. Information may come unsolicited through distribution lists, computerized conferences, forwarded messages from friends who "thought you might like to know about this," and direct email from strangers.
The lower social presence of email--as compared to in person meetings or telephone conversations--makes it easier to contact strangers because there is less concern about rude intrusion or interpersonal risk (Stoll, 1995). The willingness of people to engage online contrasts with in person situations where American bystanders have been reluctant to help strangers. Yet such bystanders are more apt to intervene when they are the only ones available to help or can withdraw easily in case of trouble. Analogously, online requests for aid are read by people alone at their screens. Even if the request is to a computerized conference and not by personal email, a recipient of requests may believe that she or he may be the only one who can provide aid....
