What AWS service helps detect abnormal or sudden spending increases in your account?

The AWS service that specifically helps detect abnormal or sudden spending increases in your account is AWS Cost Anomaly Detection. This service utilizes machine learning models to monitor your spending patterns and identify any unusual charges that deviate from your typical expenditure trends. By setting up alerts, it notifies you when it senses a significant increase in costs, allowing you to take prompt action to mitigate unexpected expenses.

While AWS Budgets allows you to set monetary and usage budgets and track your performance against these budgets, it does not specifically focus on detecting anomalies in spending. AWS Cost Explorer provides visualizations of your spending trends over time but lacks the automated anomaly detection feature. Likewise, AWS Trusted Advisor offers best practice recommendations for optimizing your AWS accounts, such as cost optimization, but it does not monitor spending patterns or detect anomalies directly. Hence, for the precise function of identifying unusual spending patterns, AWS Cost Anomaly Detection is the most appropriate choice.