Classification insights about your data from Azure Purview

This how-to guide describes how to access, view, and filter Purview Classification insight reports for your data.

Supported data sources include: Azure Blob Storage, Azure Data Lake Storage (ADLS) GEN 1, Azure Data Lake Storage (ADLS) GEN 2, Azure Cosmos DB (SQL API), Azure Synapse Analytics (formerly SQL DW), Azure SQL Database, Azure SQL Managed Instance, SQL Server, Amazon S3 buckets, and Amazon RDS databases (public preview), Power BI

In this how-to guide, you'll learn how to:

Prerequisites

Before getting started with Purview insights, make sure that you've completed the following steps:

• Set up your Azure resources and populated the relevant accounts with test data

• Set up and completed a scan on the test data in each data source. For more information, see Manage data sources in Azure Purview and Create a scan rule set.

• Signed in to Purview with account with a Data Reader or Data Curator role.

For more information, see Manage data sources in Azure Purview.

Use Purview classification insights

In Azure Purview, classifications are similar to subject tags, and are used to mark and identify data of a specific type that's found within your data estate during scanning.

Purview uses the same sensitive information types as Microsoft 365, allowing you to stretch your existing security policies and protection across your entire data estate.

To view classification insights:

1. Go to the Azure Purview instance screen in the Azure portal and select your Purview account.

2. On the Overview page, in the Get Started section, select the Purview Studio tile.

3. In Purview, select the Insights menu item on the left to access your Insights area.

4. In the Insights area, select Classification to display the Purview Classification insights report.

   

   The main Classification insights page displays the following areas:

   Area	Description
   Overview of sources with classifications	Displays tiles that provide: - The number of subscriptions found in your data - The number of unique classifications found in your data - The number of classified sources found - The number of classified files found - The number of classified tables found
   Top sources with classified data (last 30 days)	Shows the trend, over the past 30 days, of the number of sources found with classified data.
   Top classification categories by sources	Shows the number of sources found by classification category, such as Financial or Government.
   Top classifications for files	Shows the top classifications applied to files in your data, such as credit card numbers or national identification numbers.
   Top classifications for tables	Shows the top classifications applied to tables in your data, such as personal identifying information.
   Classification activity (files and tables)	Displays separate graphs for files and tables, each showing the number of files or tables classified over the selected timeframe. Default: 30 days Select the Time filter above the graphs to select a different time frame to display.

Classification insights drilldown

In any of the following Classification insights graphs, select the View more link to drill down for more details:

• Top classification categories by sources
• Top classifications for files
• Top classifications for tables
• Classification activity > Classification data

For example:

Do any of the following to learn more:

Option	Description
Filter your data	Use the filters above the grid to filter the data shown, including the classification name, subscription name, or source type. If you're not sure of the exact classification name, you can enter part or all of the name in the Filter by keyword box.
Sort the grid	Select a column header to sort the grid by that column.
Edit columns	To display more or fewer columns in your grid, select Edit Columns , and then select the columns you want to view or change the order.
Drill down further	To drill down to a specific classification, select a name in the Classification column to view the Classification by source report. This report displays data for the selected classification, including the source name, source type, subscription ID, and the numbers of classified files and tables.
Browse assets	To browse through the assets found with a specific classification or source, select a classification or source, depending on the report you're viewing, and then select Browse assets above the filters. The search results display all of the classified assets found for the selected filter. For more information, see Search the Azure Purview Data Catalog.

Next steps

Learn more about Azure Purview insight reports