Which method should be avoided to maintain security in AWS Identity and Access Management?

Providing default administrative privileges should be avoided to maintain security in AWS Identity and Access Management because this practice can create significant vulnerabilities in an organization's cloud environment. When users are granted administrative privileges by default, they have broader access than necessary, which increases the risk of accidental or intentional misuse of those permissions. This can lead to data breaches, inadvertent deletion of resources, and other security issues.

Best practices in cloud security advocate for the principle of least privilege, which means that users should only have the permissions necessary to perform their job functions. By avoiding default administrative privileges, organizations can implement stricter access controls and ensure that permissions are granted on a more tailored, need-to-know basis. This leads to better security posture and minimizes the potential attack surface in AWS environments.