Cisco Cisco Email Security Appliance C190 Guía Del Usuario
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Cisco IronPort AsyncOS 7.1 for Email Configuration Guide
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Chapter 11 Data Loss Prevention
A number of policy templates require customization of one or more classifiers in
order to detect sensitive data. Customization includes creating a regular
expression to search for identification numbers and a list of words and phrases
that may consistently appear with the identification number. For example, adding
a policy based on the FERPA (Family Educational Rights and Privacy Act)
template requires creating a regular expression to match custom student ID
numbers. If the ID numbers consistently appear with the phrase “Student ID,”
such as “Student ID: 123-45-6789,” adding the phrase to the policy would
improve content matching accuracy. For more information on required
customization for DLP policies, see
order to detect sensitive data. Customization includes creating a regular
expression to search for identification numbers and a list of words and phrases
that may consistently appear with the identification number. For example, adding
a policy based on the FERPA (Family Educational Rights and Privacy Act)
template requires creating a regular expression to match custom student ID
numbers. If the ID numbers consistently appear with the phrase “Student ID,”
such as “Student ID: 123-45-6789,” adding the phrase to the policy would
improve content matching accuracy. For more information on required
customization for DLP policies, see
Note
For policies that do not have a classifier, the scanning engine always returns a risk
factor value of “75” when a message violates the policy. You may want to adjust
the severity scale for such policies, depending on the type of DLP violations that
may occur. See
factor value of “75” when a message violates the policy. You may want to adjust
the severity scale for such policies, depending on the type of DLP violations that
may occur. See
for more information.