A simple configuration error or administrative mistake can compromise the security of your organization’s cloud environment. Amazon Web Services security is a shared responsibility, so don’t always know what AWS takes care of. EC2 puts the onus of security on you, leaving you responsible for configuring the operating system, managing applications, and protecting data. Cloud security company Saviynt recently found among its customers an average of 1,150 misconfigurations in Elastic Compute Cloud (EC2) instances per AWS account.”]
Source: https://www.csoonline.com/article/3138102/10-aws-security-blunders-and-how-to-avoid-them.html