We don't have step-by-step insructions on data filtering profiles, but you can contact Support for more information on how to create them. An example of a regular expression would be confidential or private (must be a minimum of 7 bytes). The weight is the vaule used in the calculation to determine the action to be taken when the keyword appears in session traffic. Using confidential as an example, if you weight it with 2, each time the word appears during a session the count will increment by 2. If you set up the data filtering profile to alert at 4 and block at 10, this means the word confidential appearing twice in the session will create an alert and it will be blocked if it appears 5 times.
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