tarsnap is dead simple to use if you have classic Unix sysadmin knowledge, it takes care of the encryption/deduplication work behind the scenes, I trust it to w

tarsnap is dead simple to use if you have classic Unix sysadmin knowledge, it takes care of the encryption/deduplication work behind the scenes, I trust it to work properly and be secure because the creator is someone who has integrity (you can email him any time and get no-nonsense and refreshingly honest replies) and the price only becomes an issue if you’re storing massive amounts of data, at which point you have probably outgrown it.