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Is it possible to keep volumes private between different administrators of a shared AWS account?

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In a corporate context, with one AWS account shared by many developers, is it possible to keep stored data secret from each other?

For example, is it possible to configure an EC2 instance with an encrypted volume, and prevent even account administrators from changing the ssh key or decrypting the volume without at least triggering an email alert? Does AWS provide this level of isolation almost by default between processes within the same account (like refusing to let security codes be viewed more than once)? Or is any practical/useful set of admin role privileges necessarily also powerful enough to read all memory of every EC2 instance?

Tim avatar
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Tim
Anyone with full administrator rights can do almost anything in the account. Instead I would define groups (for IAM users) or roles (if you want users to assume roles) that have policies attached that restrict their access to resources with specific tags. If you search for something like "restrict aws resource access by tag" you will probably find plenty of articles.
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