https://phd.aws.amazon.com/phd/homeIAM operational issue
Increased Error Rates and Latencies
We are investigating increased error rates and latencies on IAM administrative APIs in US-EAST-1 Region. The IAM console and Create, Delete, List, Get, and Update API actions on IAM Users, Groups, Roles and Policies may be impacted. Other AWS services whose features require these actions will also be impacted. All existing authentications and authorizations are not impacted.