[qiemem]

From the article:

> While Sync uses BitTorrent technology, people’s files are not accessible to outsiders. Only those who have the unique private key can access the shared folder.

>

> “All the traffic is encrypted using a private key derived from the shared secret. Your files can be viewed and received only by the people with whom you share your private secret,” BitTorrent explains.

[mrcharles]

I read the page, but that doesn't seem clear to me. If they have encrypted versions of my files, they still don't technically have access to them.

[lifeguard]

No. Only key holders have access to the data being shared. It is up to you to authorize every share with a key. Single use keys can also be generated.

There are relays if you need them due to firewalls:

"We also provide such additional methods of ensuring connectivity as relay and tracker servers."

But you can opt out of this config.

[mtgx]

Security wise, is this that different from just making a private torrent yourself and giving it to someone you know?

[deno]

It’s equivalent of making a private torrent of your encrypted content then giving your friend the torrent metadata AND decryption key. That is not including additional features.