Hello Sir, Are you looking for Data-Patterns profile or File Blocking profile. Data Patterns: The Data Patterns profile uses to define the categories of sensitive information that you may want to subject to filtering using data filtering security policies. i.e SSN CC number. File Blocking: A security policy can include specification of a file blocking profile that blocks selected file types from being uploaded and/or downloaded, or generates an alert when the specified file types are detected. We have a predefine signature of all file types inside PA firewall. So, no need to buffer the whole file in order to determine the "file type". For more info : Creating Custom Application Signatures Thanks
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