Was the data exposure really accidental?

Here's an interesting tidbit regarding the exposure of personal information on almost 200 million Americans from a Republican-funded data analytics repository.

According to the security company Upguard that found the breach, the data was stored in an Amazon S3 bucket, which is a cloud-based data warehouse.

The interesting tidbit is that S3 buckets are *****secure by default***** when they are created.

This means that the owner had to deliberately open them up for public access. Accidental exposure? Maybe, maybe not...

This issue isn't mentioned in the story by the company who discovered the exposed files:
https://www.upguard.com/breaches/the-rnc-files