Yostivanich

Sync took a dif­fer­ent tack, and started off with “what if we didn’t want the data? What if even hav­ing that data was a fail­ure state?” That led us to cryp­tog­ra­phy. Sync uses strong crypto to encode your data before it is uploaded. The secret phrase is the key to this encryp­tion, and we never send that any­where to keep your data secure. This really means that Mozilla can’t see your data, giv­ing you full con­trol. (Which is great, because we really don’t want it!)

via Mozilla Labs – Sync in Fire­fox 4 Beta. I love sys­tems that take this sort of approach to data, we don’t know it and we can’t know it.