Frequently asked questions

Glossary

The Wiretap Act (18 U.S.C. § 2511 et seq.), sometimes known as “Title III,” governs the interception or collection of the content of a target’s prospective or “real-time” communications. A wiretap order is essentially a search warrant with more stringent administrative review requirements and use restrictions that limit the instances in which law enforcement may seek such an order.

A subpoena is a legal demand issued in a civil or criminal investigation without prior judicial review. Subpoenas are used to compel the disclosure of basic subscriber information, NCD that includes information captured at the time of registration, such as an alternate e-mail address, name, location, and IP address), login details, and billing information.

A search warrant is a court order that is issued based on a showing of probable cause, which means that there is “reasonable ground to suspect that a person has committed or is committing a crime or that a place contains specific items connected with a crime.” Search warrants are used to compel the disclosure of both Content and NCD.

Yahoo may have possessed data responsive to the Government Data Request, but none was produced because of a defect or other problem with the Government Data Request (e.g., the request only sought data that could not be lawfully obtained with the legal process provided). This category also includes Government Data Requests that were withdrawn after being received by Yahoo. We carefully review Government Data Requests for legal sufficiency and interpret them narrowly in an effort to produce the least amount of data necessary to comply with the request.

The Pen Register Statute (18 U.S.C. §3121 et seq.), governs the use of so-called “pen registers” and “trap and trace devices” to capture prospective or “real-time” non-content information about a target’s communications, such as information indicating who the communication was to or from, the time it was transmitted, and the duration or size of the communication. Pen register orders are issued by courts upon a showing that the information likely to be obtained is relevant to a law enforcement investigation.

Non-content data such as basic subscriber information (including the information captured at the time of registration, such as an alternate e-mail address, name, location, and IP address), login details, billing information, and other transactional information (e.g., “to,” “from,” and “date” fields from email headers).

Yahoo produced no data in response to the Government Data Request because no responsive data could be found (i.e., the account didn’t exist or there was no data for the date range specified by the request).

The number of accounts or other identifiers listed in or about which information was disclosed in response to a Government Data Request. This number may not reflect the number of users and accounts actually involved because: 1) a single account may have been included in more than one Government Data Request; 2) an individual user may have multiple accounts that were specified in one or more Government Data Requests; 3) if a Government Data Request specified an account that does not exist, that nonexistent account would nevertheless be included in our count of Government Specified Accounts; and 4) if a Government Data Request demanded information about accounts that satisfy specified criteria (e.g., accounts registered under a particular proper name or accounts associated with a particular phone number) and we determined that it was appropriate to produce data in response to the request, we would report the total number of accounts about which information was produced to the government in connection with that Government Data Request.

Governments make requests to remove publicly-available content and/or information from Yahoo platforms. These requests may be by court order or by a written request from a government official that we remove content from our services or review particular content to determine if it should be removed for violating a product's Community Guidelines or Terms of Service. We include in our numbers those requests that we identify as being from a government agency. If a government agency used a Report Abuse link, for example, we wouldn’t be able to identify the party reporting the request to remove content and we would not include that report in our statistics. Additionally, our policies and systems are setup to identify and remove child pornography whenever we become aware of it, regardless of whether that request comes from the government. As a result, we do not currently track which of those removals were requested by governments, and we haven't included those statistics here. We count requests to remove publicly-available content for other reasons (e.g., harassment, hate speech, impersonation).

Legal process to Yahoo from a government agency seeking information about users and/or the activity of users within or on Yahoo products. The Government Data Requests reflected in this report are generally made in connection with criminal investigations, but also include those from government entities in connection with non-criminal matters.

A court order under 18 U.S.C. §2703(d) of the Stored Communications Act, often known as a “D Order,” which is issued based on an intermediate standard that is less stringent than the probable cause standard for warrants but more demanding than the mere relevance standard required for subpoenas. D Orders are used to compel the disclosure of all forms of NCD.

Data that our users create, communicate, and store on or through our services. This could include words in a communication (e.g., Mail or Messenger),  files uploaded, Yahoo Address Book entries, Yahoo Calendar event details, thoughts recorded in Yahoo Notepad or comments or posts on Yahoo Answers or any other Yahoo property.