What type of security issues can Amazon Inspector identify?

Amazon Inspector is a security assessment service designed to help identify security vulnerabilities and improper configurations in applications deployed on AWS. It automates the process of assessing the security state of applications by analyzing the configurations, permissions, and vulnerabilities associated with the Amazon Elastic Compute Cloud (EC2) instances and the software installed on them.

The service can identify security issues related to known vulnerabilities in software libraries, missing patches, and deviations from security best practices, thus providing organizations with insights into potential security weaknesses in their applications. This proactive assessment enables developers and DevOps teams to remediate vulnerabilities before they can be exploited by malicious actors.

The incorrect options illustrate different concepts that are not within the scope of what Amazon Inspector is designed to address. For instance, compliance failures and network congestion are not direct security vulnerabilities; performance lags and user authentication errors relate more to application performance and user experience rather than security. Lastly, data redundancy and storage costs are related to data management rather than security assessments. Thus, the focus of Amazon Inspector is specifically on identifying security vulnerabilities and improper configurations, making the selected answer the most accurate.