Is presigned URLs to access S3 secure?

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IT Manager in Finance (non-banking)a year ago

Once you create the URL and the URL leaves your control anyone who gets access to the URL could potentially use the URL.  You can set a time limit for the URL to limit how long it can be used, but that is not much of a control.  I don't really consider it much better than using basic authentication(user ID/password)  Working with presigned URLs - Amazon Simple Storage Service