An event in CloudTrail is the record of an activity in an AWS account. This activity can be an action taken by a user, role, or service that is monitorable by CloudTrail. CloudTrail events provide a history of both API and non-API account activity made through the AWS Management Console, AWS SDKs, command line tools, and other AWS services. There are three types of events that can be logged in CloudTrail: management events, data events, and CloudTrail Insights events. Creating events in EventBridge or CloudWatch can be based off of management events and allow for realtime alerting and actions.