Common cloud security challenges
One of the most important things to watch out for in cloud security is misconfiguration. Companies have had decades of experience managing infrastructure on-premise, so they have had time to really understand all of the ins and outs. However, the cloud is still relatively new, so people are still grappling with the complexities and sheer number of configuration options.
Identity and access management (IAM) is an example of an area that is commonly misconfigured. This is mainly because of simple things not being accounted for, like not having multi-factor authentication enabled, misapplication of permissions, or being overly permissive.
This comes down to the key cloud principle of least privilege. There aren’t many companies where one individual requires access to the whole network, but businesses still frequently give individuals network-wide permissions.
In the event of a compromise, you would want the attacker to have the lowest possible level of access. It’s important to ensure that employees/users only have access to what is required to perform their roles.
There are also smaller misconfigurations that happen often, such as having unsecured S3 buckets (a type of file server). On their own, these may not be critical, but small issues like this can still evolve into bigger ones. For example, a lack of encryption on the S3 bucket can lead to sensitive data being made available in a publicly accessible realm.