What Are Some Problems Associated With LAN?

Problems associated with LAN:
                                                 (LAN) Local area networks help in the storage and use of programs and information used by a group of people. LAN software and programs must  also provide  security of these programs and information. Most LAN software provides a low level of security. The stress has been on providing new functions rather than security. Due to this, problems linked with use of LANs include:

. Loss of data and program integrity through unauthorized changes.
. Lack of current data protection through inability to maintain version control.
. Exposure to external activity through limited user verification and potential public network access from dial-in connection.
. Virus infection.
. Improper disclosure of data because of general access rather than need-to-know access provisions.
. Violating software licenses by using unlicensed or excessive numbers of software copies.
. Illegal access or copying data by legal LAN user.
. Internal user's sniffing (obtaining seemingly unimportant information from the network that can be used to launch an attack, such as network address information.
. Internal user's spoofing (reconfiguration of a network address to pretend to be a different address)
. Destruction of the logging and auditing data.
. System reliability, flexibility, response time, vendor support, and the cost of telecommunications facilities used, are some of the important factors that may disappoint network users in some case.

Problems can be occurred with hardware or even with wires used to build a LAN.  Server and work station memory can create problems, if not monitored properly. Another issue can be software up gradations