Amazon AWS can be affected by DNS misconfiguration or subdomain takeover vulnerabilities.
Amazon Elastic Compute Cloud (Amazon EC2) provides scalable computing capacity in the Amazon Web Services (AWS) Cloud. Using Amazon EC2 eliminates your need to invest in hardware up front, so you can develop and deploy applications faster. You can use Amazon EC2 to launch as many or as few virtual servers as you need, configure security and networking, and manage storage. Amazon EC2 enables you to scale up or down to handle changes in requirements or spikes in popularity, reducing your need to forecast traffic.
Attackers can use your AWS EC2 by impersonating you and access your private data.
Check your DNS records regularly to remove unused ones.