# Tagging Security Lake resources
<a name="tagging-resources"></a>

A *tag* is an optional label that you can define and assign to AWS resources, including certain types of Amazon Security Lake resources. Tags can help you identify, categorize, and manage resources in different ways, such as by purpose, owner, environment, or other criteria. For example, you can use tags to apply policies, allocate costs, distinguish between resources, or identify resources that support certain compliance requirements or workflows.

You can assign tags to the following types of Security Lake resources: subscribers, and the data lake configuration for your AWS account in individual AWS Regions.

**Topics**
+ [Tagging fundamentals](tags-basics.md)
+ [Using tags in IAM policies](tags-iam.md)
+ [Adding tags to resources](tags-add.md)
+ [Editing tags for resources](tags-update.md)
+ [Removing tags from resources](tags-remove.md)