Cisco Cisco Email Security Appliance C160 Mode D'Emploi

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Cisco AsyncOS 8.5.6 for Email User Guide
 
Chapter 17      Data Loss Prevention
  DLP Policies for RSA Email DLP
About Assessing Violation Severity 
When the DLP scanning engine detects a potential DLP violation, it calculates a risk factor score that 
represents the likelihood that the instance actually is a DLP violation. The policy compares the risk 
factor score to the Severity Scale defined in that policy in order to determine the severity level (for 
example, Low or Critical.) You specify the action to take for violations at each severity level (except 
Ignore, for which no action is ever taken.) You can adjust the risk factor scores required to reach each 
severity level. 
Related Topics
Adjusting the Severity Scale 
All policies have a default severity scale. You can adjust this scale for each policy. 
For example, by default, a violation has a severity level of Critical if its risk factor score is between 90 
and 100. However, for violations that match a particular policy, you may want increased sensitivity to 
potential data loss. For this DLP policy, you could change the Critical severity level to any violation with 
a risk factor score between 75 and 100. 
Procedure 
Step 1
Select Mail Policies > DLP Policy Manager.
Step 2
Click the name of the policy to edit. 
Step 3
In the Severity Settings section, click Edit Scale..
Step 4
Use the scale’s arrows to adjust the scores for the severity levels. 
Step 5
Click Done
Step 6
In the Severity Scale table, verify that your scores are as you want them. 
Step 7
Click Submit
Related Topics 
Arranging the Order of the Email DLP Policies for Violation Matching 
If a DLP violation matches more than one of the DLP policies enabled in the outgoing mail policy, only 
the first matching DLP policy in the list is used. 
Procedure 
Step 1
On the DLP Policy Manager page, click Edit Policy Order.
Step 2
Click on the row for a policy you want to move and drag it to a new position in the order.