SMC Networks SMC2670W - Manual (Page 13)

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2.4 | Understanding Wireless Security (WEP)
Anyone within range of your wireless network is a potential
security risk. Without wireless security options configured on
your network, a person outside of your physical location, but
within your wireless range may be able to access the network
and any data that is being transmitted over it. SMC Networks’
wireless devices support the wireless security standard called
Wired Equivalent Privacy (WEP) to prevent unauthorized users
from accessing your network over a wireless connection. This
security feature uses a secure network key, called a WEP key.
The WEP key encrypts wireless data so that it is only readable
by other computers that have the matching WEP key. The WEP
key is stored on each wireless device, so that data can be
encrypted and decrypted as it is transmitted over the network.
If you are transferring private information over this wireless
connection, it is recommended to enable WEP for your Wireless
Ethernet Adapter. For more information about WEP and
security, see section 6.