
Published at EFF, September 2006
Google, MSN Search, Yahoo!, AOL, and most other search engines collect and store records of your search queries. If these records are revealed to others, they can be embarrassing or even cause great harm. Would you want strangers to see searches that reference your online reading habits, medical history, finances, sexual orientation, or political affiliation?
Recent events highlight the danger that search logs pose. In August 2006, AOL published 650,000 users' search histories on its website.1 Though each user's logs were only associated with a random ID number, several users' identities were readily discovered based on their search queries. For instance, the New York Times connected the logs of user No. 4417749 with 62 year-old Thelma Arnold. These records exposed, as she put it, her "whole personal life."2
Disclosures like AOL's are not the only threats to your privacy. Unfortunately, it may be all too easy for the government or individual litigants to subpoena your search provider and get access to your search history. For example, in January 2006, Yahoo!, AOL, and Microsoft reportedly cooperated with a broad Justice Department request for millions of search records. Although Google successfully challenged this request,3 the lack of clarity in current law leaves your online privacy at risk.
Google, MSN Search, Yahoo!, AOL, and most other search engines collect and store records of your search queries. If these records are revealed to others, they can be embarrassing or even cause great harm. Would you want strangers to see searches that reference your online reading habits, medical history, finances, sexual orientation, or political affiliation?
Recent events highlight the danger that search logs pose. In August 2006, AOL published 650,000 users' search histories on its website.1 Though each user's logs were only associated with a random ID number, several users' identities were readily discovered based on their search queries. For instance, the New York Times connected the logs of user No. 4417749 with 62 year-old Thelma Arnold. These records exposed, as she put it, her "whole personal life."2
Disclosures like AOL's are not the only threats to your privacy. Unfortunately, it may be all too easy for the government or individual litigants to subpoena your search provider and get access to your search history. For example, in January 2006, Yahoo!, AOL, and Microsoft reportedly cooperated with a broad Justice Department request for millions of search records. Although Google successfully challenged this request,3 the lack of clarity in current law leaves your online privacy at risk.