The Wifi channel was changing 5 times per second. The microscopic fragments they got weren't usable. The tiny possibility that you were sending sensitive data,

The Wifi channel was changing 5 times per second. The microscopic fragments they got weren't usable. The tiny possibility that you were sending sensitive data, multiplied times the tiny possibility that it wasn't SSL, multiplied times the very small possibility that it was grabbing enough information to get a full frame, let alone a handshake seems very unlikely. If Google had this massive mountain of my personal traffic lying around, I think they'd have a hard time "accidentally" stockpiling all of it. I was mostly mocking the word choice anyway. "Web Usage". The worst allegation is that they logged actual packets or traffic, which I still find unlikely. I did find it interesting that that particular part of the detail was left out of Google's otherwise very informative blog post about this incident.