{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "AllowAllUsersToListAllGroups",
            "Effect": "Allow",
            "Action": "iam:ListGroups",
            "Resource": "*"
        },
        {
            "Sid": "AllowAllUsersToViewAndManageThisGroup",
            "Effect": "Allow",
            "Action": "iam:*Group*",
            "Resource": "arn:aws:iam::*:group/AllUsers"
        },
        {
            "Sid": "LimitGroupManagementAccessToSpecificUsers",
            "Effect": "Deny",
            "Action": [
                "iam:AddUserToGroup",
                "iam:CreateGroup",
                "iam:RemoveUserFromGroup",
                "iam:DeleteGroup",
                "iam:AttachGroupPolicy",
                "iam:UpdateGroup",
                "iam:DetachGroupPolicy",
                "iam:DeleteGroupPolicy",
                "iam:PutGroupPolicy"
            ],
            "Resource": "arn:aws:iam::*:group/AllUsers",
            "Condition": {
                "StringNotEquals": {
                    "aws:username": [
                        "srodriguez",
                        "mjackson",
                        "adesai"
                    ]
                }
            }
        }
    ]
}