Being able to troubleshoot security issues is essential to ensuring fully functional systems in the cloud. In this course you will examine some of the common causes of security issues. Learn to troubleshoot security issues due to missing or incomplete privileges, authentication or authorization issues, or network and directory security group issues. Next, discover how to troubleshoot security issues due to expired, revoked, compromised, or misconfigured keys and certificates or due to misconfigured or misapplied policies. Finally, explore a variety of security concerns, including those due to unencrypted data, data breaches, misclassification of data, lack of protocol encryption, insecure ciphers, and cyber attacks. Upon completion of this course, you will be able to confidently troubleshoot security issues in AWS. This course is part of a collection that prepares learners for the AWS Certified Developer - Associate 2021 certification exam.