Acquisition of Personal Data
Personal Data gathered by Yahoo! JAPAN
“Personal data” refers to information on a person, such as information on the customer entered by the customer when using our service, browse/search history of webpages, purchase history in our shopping service and others. Sometimes, “personal information” which can identify the individual is included in this data.
What is personal information?
Personal information refers to information that can specify an individual. For example, information that includes names and addresses, etc. fall under personal information. Even if names, etc. are not included, if an individual can be identified by a combination of information such as gender, telephone number, workplace, etc. such information falls under personal information. Major personal information held by Yahoo! JAPAN is as follows:
- Name, address, telephone number
- Registered email address that includes name and name of the organization that the individual belongs to, which enables the individual to be specified
The Amended Act on the Protection of Personal Information enforced on September 3, 2015 prescribes a special type of personal information that requires special care as special care-required personal information”. Race, creed, social status, medical history, criminal record, fact of having suffered damage by a crime, or other descriptions, etc.” ,fall under special care-required personal information”.
Yahoo! JAPAN complies with the Amended Act on the Protection of Personal Information by acquiring the consent of our customers and by other means in the acquisition, use, and provision of “special care-required personal information”.
Major “special care-required personal information” held by Yahoo! JAPAN is as follows:
- Information on “medical history” registered to HealthData Lab (Japanese only) when answering the “survey on lifestyle habit”.
What is personal data?
Personal data includes personal information as well as all information that can distinguish that a piece of information belongs to somebody although it may not identify the individual. For example, if a customer accesses the webpage of Yahoo! JAPAN, information that identifies the browser used by the customer (identifier) is sent to Yahoo! JAPAN *1.
By aggregating the accesses from this identifier, Yahoo! JAPAN is able to know which webpage is accessed by the customer who uses a specific browser. In this case, Yahoo! JAPAN is unable to know which specific customer is using this specific browser, but will be able to know that somebody accessed this webpage. Thus, all information with which Yahoo! JAPAN can know that “the information belongs to somebody” falls under personal data. Information such as browsing history of webpages, search history, click history of an advertisement, etc., that are linked to the abovementioned identifier, and attributes of customers that can be speculated from these pieces of information, etc. fall under personal data.
Personal data is sometimes used when Yahoo! JAPAN creates statistical information.
Yahoo! JAPAN also pays close attention on the protection of customers’ privacy in these cases so that the customers will not be specified through analysis, etc. by a third party. Yahoo! JAPAN uses various statistical information to improve its services and to communicate information that leads to the problem solving of social issues such as "Yahoo! JAPAN Big Data Report (Japanese only)"
*1 Setting to prevent continuous tracking is also possible. For details, please refer to "Private browsing".
Acquisition of personal data
Yahoo! JAPAN acquires personal data in the following cases:
When customers enter personal data by operating a terminal
The best example of this case is when customers enter information for registration and send the information when acquiring Yahoo! JAPAN ID. Also, when customers cooperate in our surveys, customers operate their terminal to enter information, click or tap on “send” and “register” button, and the entered information is sent to Yahoo! JAPAN. Yahoo! JAPAN acquires personal data in such cases.
When personal data is provided by customers directly or through media such as documents, etc.
The best example of this case is when identity verification documents are sent for services. Customers directly send in documents with personal data such as identity verification documents to Yahoo! JAPAN, and Yahoo! JAPAN acquires personal data through the receipt of such documents.
When the personal data is automatically sent when the customers use or browse Services *2
The best example of this case is when Yahoo! JAPAN acquires the location information of the terminal in which “Yahoo! JAPAN Disaster Alert” is installed in order to notify disaster information according to the location of the terminal. (Only when the setting in the terminal used by the customer is activated to send the location information to Yahoo! JAPAN.) Yahoo! JAPAN will acquire personal data by receiving the data automatically sent according to the setting of the software used by the customer.
Also, when the webpage or app of Yahoo! JAPAN’s advertisers or ad distribution destinations, etc. are used, Yahoo! JAPAN may also acquire information to identify the terminal used by the customer, etc. by referring to the cookies or terminal information through Yahoo! JAPAN’s web beacons (Japanese only), etc. installed in the webpages or apps of these partners.
*2 Services, products, advertisements or contents are hereinafter collectively referred to as “Services.” However, Services include services, products, advertisements or contents towards partners and customers other than the customer him/herself.
Another example includes when customers send voice data through the use of services such as voice search that need voice input. The voice data sent will be stored with random identifiers which cannot identify the individual and, after 180 days, will be detached from the identifiers.
When the personal data is acquired from third parties
In some cases, Yahoo! JAPAN acquires personal data when it is provided with information acquired by third parties. Sometimes, Yahoo! JAPAN provides services in collaboration with third parties in order to provide more convenient and attractive services to our customers. In these collaborations, there are times when coordination of information is needed with these third parties, and Yahoo! JAPAN receives information from these third parties for this purpose. (Whether or not information is coordinated or the specific information to be coordinated differs by individual service coordination.) When receiving personal information from third parties, Yahoo! JAPAN conducts appropriate measures such as complying with the Act on the Protection of Personal Information.
In some Services of Yahoo! JAPAN, Yahoo! JAPAN allows other parties to acquire personal data. For example, when an item is purchased in Yahoo! JAPAN Shopping, information on the item purchased, shipping address, billing destination is acquired by the merchant which sells this item. In some cases, the Services of Yahoo! JAPAN allow other parties to install cookies and mount development kits of apps. More specifically, Yahoo! JAPAN allows the installment of cookies and mounting of app development kits to: a) market research companies(*3) to investigate the usage of the Services of Yahoo! JAPAN; b) advertisers and ad agencies to measure the effects of ads posted in the Services of Yahoo! JAPAN and to distribute appropriate ads; and c) content providers, etc. to provide contents better suited for the customers.
*3 Customers who wish to be removed from the survey for Nielsen Digital Content Ratings by Nielsen Digital Co., Ltd. are requested to make necessary changes to their settings through Privacy Protection Policies for Digital Measurement (in Japanese) (external site).
Please refer to “Data Storage (Japanese only)” for backup of data handled by Yahoo! JAPAN (e.g. registered information, etc.) and storage period, etc.