Google Voice voicemails are being indexed and made publicly available somehow. If you punch in "site:https://www.google.com/voice/fm/*" as a search string you get a few pages of what appear to be test messages, with a couple eye-opening obvious non-tests scattered in there as well. Dates on these messages range from a couple months ago all the way until yesterday, so this is clearly an ongoing issue -- hopefully Google patches this up awful fast.
P.S. - Google Voice transcription accuracy really falls off a cliff when it's listening to muffled audio, doesn't it?
Update: Google says it's changed how shared messages are indexed and made available to public searches, so we're hoping this was just a one-time thing.
[Via Boy Genius Report]