I suppose its another “use at your own risk”. I don’t know how Proton handles packaged files.
I always recommend testing anything you decide to use that doesn’t have a lot of testimonial behind it.[1] But to be clear, all syncing is used at your own risk, and there is no service out there that will protect you from yourself, which is in my experience the largest risk in the equation, by far. The technology itself doesn’t have a ton of variation; there are only so many ways to do this thing.
I would have one nitpick though, as for “packages”, this is another one of those myths to be aware of. I’m sure Proton can sync them just as well as it syncs any other folder with files in it. In fact I would say the chance of failure or problems is higher the more a service is “aware” of Mac conventions such as treating some folders as files. It has historically been a lot more difficult to recover your data out of the Dropbox app on iOS, or their website, for example, because they actively discourage examination of a folder’s contents if it matches commonly known Mac naming conventions. I’d rather sync be entirely and completely unaware of such things, and treat it just as it does any other large folder.
I entirely agree on the last point, or the implication of it, and that is how important zero-knowledge encryption is. I might trust Tresorit and the third-party security audits that clear them, or Proton, but do I trust what happens when/if they go out of business and sell off to Meta or Google? Nope! Good thing they don’t have my keys. It is still not safer than keeping your data off of the Internet entirely, but if you’re going to, at least lock the door, and if your service always has their foot wedged into it, give them the boot. They aren’t worth it.
Though you do have to be careful of testimonial, or what appears to be that. There is a pile of confusion out there on this topic, and probably not a small amount of grassroots marketing and LLM regurgitation making a mess of all information as well. ↩︎