S3 Access and Secret Key

If you need to add or modify your endpoints, you can run through the
Secure Setup tool again and visit the credentials screen to update
those keys.

Your reports won't be affected if you delete old keypairs on your AWS
account, by the way, since we don't use them to access your account
from our end (or ever see them at all). So long as the IAM Role that
the setup tool created is still alive and well, we can still use that
to read your logs.