Cisco Cisco Email Security Appliance C160 Mode D'Emploi

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18-17
User Guide for AsyncOS 10.0 for Cisco Email Security Appliances
 
Chapter 18      Data Loss Prevention
  DLP Policies for RSA Email DLP
An 8-digit number: 
\d{8}
Identification code with hyphens between sets of numbers: 
\d{3}-\d{4}-\d
Identification code that begins with a single letter that can be upper or lower case: 
[a-zA-Z]\d{7}
Identification code that begins with three digits and is followed by nine uppercase letters: 
\d{3}[A-Z]{9}
Using 
|
 to define two different number patterns to search for: 
\d{3}[A-Z]{9}|\d{2}[A-Z]{9}-\d
Using Custom Dictionaries of Sensitive DLP Terms (Custom DLP Policies Only) 
AsyncOS comes with a set of predefined dictionaries from RSA Security Inc., but you can also create 
custom DLP dictionaries to specify terms for the DLP scanning feature to match. 
You can create a custom DLP dictionary in several ways: 
 
 from another Email Security appliance and then 
Adding Custom DLP Dictionaries Directly 
Procedure 
Step 1
Select Mail Policies > DLP Policy Manager. 
Step 2
In the Advanced Settings section, click the link beside Custom DLP Dictionaries
Step 3
Click Add Dictionary
Step 4
Enter a name for the custom dictionary.
Step 5
Enter new dictionary entries (words and phrases) into the list of terms. 
Dictionary terms are case-sensitive and can contain non-ASCII characters. 
When entering multiple entries, separate the entries with line breaks. 
Step 6
Click Add.
Step 7
Submit and commit your changes.
Creating DLP Dictionaries as Text Files 
You can create your own dictionary as a text file on your local machine and import it onto the appliance. 
Use line breaks for each term in the dictionary text file. Dictionary terms are case-sensitive and can 
contain non-ASCII characters. 
Exporting DLP Dictionaries 
Note
Predefined DLP dictionaries cannot be exported.