All well and good — I suspect that OpenPGP is one of the few reliable tools out there for file and email security — but BitTorrent Sync is closed-source. We hav

All well and good — I suspect that OpenPGP is one of the few reliable tools out there for file and email security — but BitTorrent Sync is closed-source. We have no way of knowing that it doesn't automatically provide copies of all data to interested third parties. Better put those cat pictures in TrueCrypt (another tool which probably works) volumes before syncing them out. (Assuming your hardware doesn't compromise the encryption.)