5 min
AWS CloudTrail Pricing: Why Data Events Drive the Bill
Management events are free for the first trail. Data events bill $0.10 per 100K, and on a busy S3 bucket that lands at thousands per month. CloudTrail Lake is $0.75/GB ingested with one-year extendable retention ($0.023/GB-month after year one), or $2.50/GB with seven years of retention included. Insights events analyze every management event for anomalies at $0.35/100K. Wildcard data-event selectors are the usual source of the overspend.
Kevin W.