What is CloudTrail

Benefits
Visibility Into User and Resource Activity
Security Analysis and Troubleshooting
Simplified Compliance
Security Automation
Use Cases
Security Analysis
You can perform security analysis and detect user behavior patterns by ingesting Amazon CloudTrail events into your log management and analytics solutions.
Compliance Aid
Amazon CloudTrail makes it easier to ensure compliance with internal policies and regulatory standards by providing a history of activity in your Amazon Web Services account. For more information, download the Amazon Web Services compliance whitepaper, “Security at Scale: Logging in Amazon Web Services.”
Operational Issue Troubleshooting
Integrations

Amazon CloudWatch Logs Integration
Amazon CloudTrail integration with Amazon CloudWatch Logs enables you to send management and data events recorded by CloudTrail to CloudWatch Logs. CloudWatch Logs allows you to create metric filters to monitor events, search events, and stream events to other Amazon Web Services services, such as Amazon Lambda.

Amazon CloudWatch Events
Amazon CloudTrail integration with Amazon CloudWatch Events enables you to automatically respond to changes to your Amazon Web Services resources. With CloudWatch Events, you are able to define actions to execute when specific events are logged by Amazon CloudTrail. For example, if CloudTrail logs a change to an Amazon EC2 security group, such as adding a new ingress rule, you can create a CloudWatch Events rule that sends this activity to an Amazon Lambda function. Lambda can then execute a workflow to create a ticket in your IT Helpdesk system.