Cisco Cisco Email Security Appliance C650 Guía Del Usuario

Simple regular expressions that describe patterns of numbers and letters in identification or account 
numbers might look like the following: 

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

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: 

 

 and then 

 from another Email Security appliance and then 

. 

Select Mail Policies > DLP Policy Manager. 

In the Advanced Settings section, click the link beside Custom DLP Dictionaries. 

Click Add Dictionary. 

Enter a name for the custom dictionary.

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. 

Click Add.

Submit and commit your changes.

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.