About US40a 13
Notes on Security in Use of Wireless LAN Devices
The wireless LAN can transfer data between a PC and a wireless access point through radio waves
instead of using LAN cables. Accordingly, the wireless LAN is advantageous to enable free LAN
connection within the area where radio waves can reach.
On the other hand, the wireless LAN may cause the following problems to occur without proper
security because radio waves can penetrate obstacles (including walls) to reach any places within a
certain range.
Communication data is sniffed.
Malicious third parties may intentionally intercept radio waves to sniff communication
data as follow:
– Personal information including user IDs, passwords and credit card numbers and
– E-mails.
Network is invaded illegally.
Malicious third parties may access to personal or corporate networks without permission
to:
– get out personal or confidential information (information leakage),
– spoof as a specific person to distribute wrong information (spoofing),
– intercept communication data, rewrite the data and send out the rewritten data
(alteration) and
– distribute computer virus to crack data and systems (cracking).
Wireless LAN cards and access points essentially have security schemes to cope with these
problems. Therefore, proper settings on security in wireless LAN devices can reduce the possibility
at which these problems occur.
It is recommended to be familiar with the problems in use of wireless LAN devices without security
and provide proper security settings in your judgment and responsibility.
If you cannot deal with security settings by yourself, contact your service representative.
NEC does not assume any responsibility for any losses caused by problems occurred due to no
security measures or unavoidable circumstances concerning wireless LAN specification.
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