Microsoft: Zero Data Retention Not Possible to Keep Search Engines Viable
Yahoo's time reduction of users' search engine data storage from 13 to three months caught the eye of privacy advocates, who called for Google to lead the way toward a zero retention policy...
Yet Yahoo's move was received with cautious praise by some privacy advocates who believe Yahoo, Google and Microsoft can do better. Peter Eckersley, staff technologist with consumer rights group Electronic Frontier Foundation, told eWEEK:
This looks like an attempt by Yahoo to keep a lot of information that they can use for their own internal research and engineering purposes, while being able to say "it would be extremely hard for us to find your search history file in this huge stack of search history files that we keep". That's a big step in the right direction.