Create a Classification using Proximity
You can identify sensitive data with text patterns using advanced patterns, dictionaries, and keywords in a classification. Use a proximity match in your classification to define how many characters can separate items in advanced patterns, dictionaries, and keywords and still trigger a match. If two items are found within the selected number of characters, it's a match.
To create a classification using proximity:
- Go to Policy > DLP Policies > Classifications.
- Click Actions > Create Classification.
- Classification Name. Enter a name for this classification. For example, Proximity Match Classification. Enter an optional description to describe its use or purpose.
- Category. Select a Category from the list.
- Conditions. For IF, for this example, select Proximity.
- Define your proximity classification criteria:
- Proximity is less than <number> characters. Enter a number to specify how close the values must appear. The number of characters should be between 1 and not more than 99,999 characters.
For Example: If you enter 20, the two values must appear within 20 characters of each other to trigger the classification criteria. - between: Select Criteria. Select two values to specify proximity for. The values can be a dictionary, an advanced pattern, or a keyword. Select one of the following:
- Dictionary. Select from:
- is any of. To match any of the items.
- Then select one or more Dictionaries from the side panel. (To close the side panel, click X.)
- Advanced Pattern. Select from:
- is any of. To match any of the items.
- Then select one or more Advanced Patterns from the side panel.
- Click i to view the Regular Expressions for the selected Advanced Patterns displayed on the second side panel.
- To close the side panel, click X.
- Keyword. Enter your keywords separated by commas without a space.
- Dictionary. Select from:
- and. The values again can be a dictionary, an advanced pattern, or a keyword.
- and found at least <number> times. This is the match count. Enter a number to specify how many times the values must appear in proximity to each other to trigger the classification criteria. The number can be between 1 and 5000.
- Proximity is less than <number> characters. Enter a number to specify how close the values must appear. The number of characters should be between 1 and not more than 99,999 characters.
NOTE: The proximity rule limit should be within 1 to 5000. If the proximity limit exceeds, the error message is displayed as an Invalid value.
- ► See Image
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- Click Save.