I had the same concerns, mostly because I tend to reuse the same sets of photos, and it bothered me that I didn’t really know who was storing what. A couple of months ago I started digging into different services just to understand how they handle uploaded images. One of the platforms I tested was https://hornyai.com/face-swap , and what I appreciated was that the process felt pretty transparent — the site gives a straightforward explanation of how the tool works and doesn’t overwhelm you with confusing terms. Still, even with clearer platforms, I try to use images that don’t reveal too much about me, like casual shots instead of ID-style photos.
From what I observed, the safest approach is to assume that anything you upload might stay online longer than you think, even if the website claims otherwise. That’s not necessarily because they’re malicious — sometimes it’s just how storage systems work behind the scenes. So for me it’s about managing my own risk rather than fully relying on the service’s promises. Another thing: I always avoid uploading pictures of other people unless they’ve said it’s okay, because that’s a privacy issue too, and people tend to forget about it.