在Expedia上订了一张美联航的机票。支付宝，其他航空公司的机票广告就来了，为什么？
2 个回答
读一读Privacy Policy就知道了：
With whom we share your information
This website may share your information with the following entities:
- Suppliers, such as hotel, airline, car rental, and activity providers, who fulfill your travel reservations. Throughout this site, all services provided by a third-party supplier are described as such. By making a reservation through this site, you are authorizing us to disclose to suppliers the information required to complete the booking and deliver the related travel. These suppliers are not controlled by Expedia and personal information disclosed to them is subject to the applicable supplier's privacy policy and security practices. Therefore, we encourage you to review the privacy policies of any travel supplier whose products you purchase through this site.
- Third-party vendors who provide services or functions on our behalf, including credit card processing, business analytics, customer service, marketing, distribution of surveys or sweepstakes programs, and fraud prevention. We may also authorize third-party vendors to collect information on our behalf, including as necessary to operate features of our website or to facilitate the delivery of online advertising tailored to your interests. Third-party vendors have access to and may collect information only as needed to perform their functions and are not permitted to share or use the information for any other purpose. They are also required to follow the same data security practices that we ourselves adhere to.
- Business partners with whom we may jointly offer products or services, or whose products or services may be offered on our website. You can tell when a third party is involved in a product or service you have requested because their name will appear, either alone or with ours. If you choose to access these optional services, we may share information about you, including your personal information, with those partners. Please note that we do not control the privacy practices of these third-party business partners.
- Referring websites. If you were referred to this website from another site (for example, through a link you clicked on another site that directed you to this one), we may share some information about you with that referring website. We have not placed limitations on the referring websites use of your personal information and we encourage you to review the privacy policies of any website that referred you here.
- Companies within our corporate family. We may share your personal information with our parent company and corporate affiliates, including Hotwire and hotels.com, as well as international corporate affiliates such as Expedia.co.uk. This sharing enables us to provide you with information about products and services, both travel-related and other, which might interest you. To the extent that our parent company and corporate affiliates have access to your information, they will follow practices that are at least as restrictive as the practices described in this Privacy Policy. They also will comply with applicable laws governing the transmission of promotional communications and, at a minimum, give you an opportunity in any commercial email they send to choose not to receive such email messages in the future.
We also may share your information:
- In response to subpoenas, court orders, or other legal process; to establish or exercise our legal rights; to defend against legal claims; or as otherwise required by law. In such cases we reserve the right to raise or waive any legal objection or right available to us.
- When we believe it is appropriate to investigate, prevent, or take action regarding illegal or suspected illegal activities; to protect and defend the rights, property, or safety of our company or this website, our customers, or others; and in connection with our Terms of Service and other agreements.
- In connection with a corporate transaction, such as a divestiture, merger, consolidation, or asset sale, or in the unlikely event of bankruptcy.
Other than as set out above, you will be notified when personal information about you will be shared with third parties, and you will have an opportunity to choose not to have us share such information.
We also may share aggregate or anonymous information with third parties, including advertisers and investors. For example, we may tell our advertisers the number of visitors our website receives or the most popular hotels and vacation destinations. This information does not contain any personal information and is used to develop content and services we hope you will find of interest.
Expedia Business Rewards Program. If you are a member of the Expedia Business Rewards Program, information related to your bookings will be shared with your employer. This information may include the name of the person booking travel; destination; travel dates; relevant suppliers, including hotels and airlines; and itinerary number. It will not include credit card numbers, passport numbers, or frequent flier numbers. If you terminate your membership in this Program, no further information will be shared.