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computer. When a device on your network requests
access to your computer, Intrusion Prevention scans
this request to ensure that it is not a virus attack. If
theinformationmatchesanattacksignature,Intrusion
Preventionblocksthetrafficfromthesuspicious device
and protects your computer. Scanning every request
from all the devices that access your computer
increasesthescantimewhichslowsdownthenetwork
speed of your computer.
If you are sure that a device on your network is safe,
you can change the trust level of the device to Full
Trust. You can configure the trust level of a device
usingtheNetworkSecurityMap.Youcan excludethese
trusted devices from Intrusion Prevention scan.
Excluding Full Trust devices from the Intrusion
Prevention scansavesthe scantime andimproves the
network speed of your computer.When you exclude a
device that is set to Full Trust, Norton 360 does not
scananyinformationthatisreceivedfromthisdevice.
TheFullTrustdevicesthatareexcludedfrom Intrusion
Prevention scan are added to Intrusion Prevention
exclusion list.
Whenadeviceonyournetworkattemptstoinfectyour
computer, AutoBlock stops all access requests from
this device. If you add this device to the Intrusion
Prevention exclusion list, Norton 360 removes the
device from the exclusion list.
w
EnsurethattheIPaddressofthedevicesthatareadded
to Intrusion Prevention exclusion list never changes.
If you find that any of the devices that you excluded
fromtheIntrusionPreventionscanisinfected,youcan
purge the saved exclusion list. When you purge the
exclusion list, Norton 360 removes all the trusted
devices from the exclusion list.
267Keeping secure onthe Internet
About Intrusion Prevention