Your query appears to refer to the , where AOL accidentally released a research dataset containing approximately 20 million search queries from 650,000 users over a three-month period.
While the original intention was for academic research, the "anonymized" data was easily de-anonymized, leading to significant privacy concerns and the swift removal of the data from official AOL sites. Key Context Regarding the Dataset Download 400K USA AOL txt
: Historical snapshots of the "AOL-user-ct-collection" sometimes exist, though they are frequently taken down due to PII (Personally Identifiable Information) concerns. Your query appears to refer to the ,