firewall
to prevent unauthorized persons from gaining access to a private network
Firewall
Unauthorized access is the use of a computer or network without permission. Unauthorized use is the use of a computer or its data for unapproved or possibly illegal activities.
It uses a 128-bit pre-shared hexadecimal key to prevent unauthorized wireless access.
Rogue
to protect a computer or network from unauthorized access
Which of the following can compromise network configuration, spread viruses and spyware, and allow unauthorized access to data?
use wireless encryption. for example, WPA or WEP (http://en.wikipedia.org/wiki/Wifi#Network_security)
network security means protecting data and resources from access by unauthorized persons
This is assuming that there is no outside access to the Ethernet network such as a Internet connection. If there were then firewalls would be needed to prevent a outside intrusion of the network. In addition to physical access security, a wireless network requires authentication and encryption to prevent unauthorized devices from connecting to the wireless network or capturing and decoding the data that is being transferred via a wireless network connection. If the wireless network has outside WAN access then you would also need firewalls as with the Ethernet network.
If a thief has access to your passbook, they may be able to make unauthorized withdrawals. It is important to report any suspicious activity to your bank immediately to prevent further unauthorized transactions. Consider placing additional security measures on your account to prevent access by unauthorized individuals.
It makes the computer vulnerable to unauthorized access through the network.