is a proprietary peer-to-peer file synchronization tool available for Windows, Mac, Linux, Android, iOS, Windows Phone, Amazon Kindle Fire and BSD. Resilio Sync (formerly BitTorrent Sync) by Resilio, Inc. I'm not holding my breath for any better approaches than what I've described above.English, German, French, Spanish, Italian, Japanese, Korean, Portuguese, Brazilian Portuguese, Russian, Chinese, Turkish, Dutch, Indonesian But this sounds pretty complicated, both in terms of code and also from the user's perspective. One approach might be to derive a sub-identity from my main identity, so that it's still me, but with limited access rights. A linked device has your identity's private key (or so I think), and there's no fix for "my private key has been stolen" other than "stop using it and create a new one". I think there's a good reason for why you basically have to recreate all your folders on a new identity if you lose your phone. But so far this works fine for me the phone is unlikely to exceed 10 shared folders, and I only need the (pay-for) "change peer access rights" feature on the main identity anyway. There's only one problem with this: if you paid for BTSync then only your main identity has the extra features. Disconnecting the peer is sufficient (or so I believe). But if the phone uses a separate identity, you don't even have to recreate those folders that were shared with the phone. If you link the phone to your main identity then you can't disconnect it that's just how this security model works. Second, if you lose your phone, you simply Disconnect that peer (and never use that phone's identity again). That's it! This gains you two things: first, your phone can no longer sync every folder available to you, but only those folders which you specifically shared with your phone. Then make the trusted home desktop the owner of the folder, and share it with the phone in "Read & Write" mode. Instead of linking your phone to your main identity, create a new identity for it. Here's an easy work-around that can be used today. A major pain if you have tons of folders and devices. It basically tells you to remove every folder and re-add to all the other devices. The official procedure for a lost phone is this. But by default, my phone is still authorized to pull the company accounting files and photo archives and everything else, even though I don't want my phone to have access to these (they are there to be synced to my laptop and another desktop). I only want the phone to have access to the e-books and Titanium backup folders. There's an e-book folder and a folder with my phone's Titanium backups. Some contain accounting stuff for my company and personal notes. The problem is that I have a dozen folders of varying level of sensitivity. This is great for convenience, but sucks for security, the classic trade-off. You no longer need to share each folder with every device specifically. But the Sync's 2.0 model is such that every linked device has the ability to pull every folder I have in my folder list. I love the idea of syncing files to the phone.
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