Claude is different from S3. AWS doesn’t need to rifle through your files to stay ahead of the competition or to mine them for business ideas because the core business is overvalued and rapidly commoditizing. AI labs, on the other hand, have an incentive to exploit every last drop of data they can lay their ethically challenged hands on. And they’ve already demonstrated that they will do this, even when it involves blatant fiduciary violations (see eg, Anthropic / Figma board member scandal).