How Twitter collects certain types of information, including location information (such as through IP address or nearby access points), and information when you install another application through Twitter. Twitter may share data with our corporate affiliates consistent with our respective privacy policies, for example, if you use your Twitter credentials to login to Vine, its short looping video service, or to provide better ads through MoPub, Twitter mobile-focused advertising exchange. (Source Online Social Media Net)
What I can see from their Private Policy is that Twitter basically retains the right to use any information on users’ behaviour even from third parties tools (exactly like Google and Facebook). I suppose this is something we already knew. However it is interesting to have a read through the full policy document. Below I highlighted what Twitter retains (in orange), how they use that information (in blue), how they retrieve it (in green).
One difference with Facebook is that their default settings are almost always to make the information a user provides public for as long as they do not delete it from Twitter, but they generally give you settings to make the information more private if you want.
Twitter instantly connects people everywhere to what’s most meaningful to them. Any registered user can send a Tweet, which is a message of 140 characters or less that is public by default and can include other content like photos, videos, and links to other websites.
Information Collection and Use
Basic Account Information: When you create or reconfigure a Twitter account, you provide some personal information, such as your name, username, password, and email address. In some cases, you may be required to provide your phone number, for example, to use Twitter via SMS or to help us prevent spam, fraud, or abuse. Your name and username are listed publicly on our Services, including on your profile page and in search results. Some Services, such as search and public user profiles, do not require registration.
Additional Information: You may provide us with profile information to make public, such as a short biography, your location, your website, or a picture. You may provide information to customize your account, such as a cell phone number for the delivery of SMS messages. We may use your contact information to send you information about our Services or to market to you. You may use your account settings to unsubscribe from notifications from Twitter. You may also unsubscribe by following the instructions contained within the notification or the instructions on our website. We may use your contact information to help others find your Twitter account, including through third-party services and client applications.Your privacy settings control whether others can find you by your email address or cell phone number. You may choose to upload your address book so that we can help you find Twitter users you know or help other Twitter users find you. We may later make suggestions to you and other users on Twitter based on imported address book contacts. You can delete your imported address book contacts from Twitter at any time. If you email us, we may keep your message, email address and contact information to respond to your request. If you connect your Twitter account to your account on another service in order to cross-post between Twitter and that service, the other service may send us your registration or profile information on that service and other information that you authorize. This information enables cross-posting, helps us improve the Services, and is deleted from Twitter within a few weeks of your disconnecting from Twitter your account on the other service. Learn more here. Providing the additional information described in this section is entirely optional.
Tweets, Following, Lists and other Public Information: Our Services are primarily designed to help you share information with the world. Most of the information you provide us is information you are asking us to make public. This includes not only the messages you Tweet and the metadata provided with Tweets, such as when you Tweeted, but also the lists you create, the people you follow, the Tweets you mark as favorites or Retweet, and many other bits of information that result from your use of the Services. We may use this information to customize the content we show you, including ads. Our default is almost always to make the information you provide public for as long as you do not delete it from Twitter, but we generally give you settings to make the information more private if you want. Our Services broadly and instantly disseminate your public information to a wide range of users, customers, and services. For instance, your public user profile information and public Tweets are immediately delivered via SMS and our APIs to our partners and other third parties, including search engines, developers, and publishers that integrate Twitter content into their services, and institutions such as universities and public health agencies that analyze the information for trends and insights. When you share information or content like photos, videos, and links via the Services, you should think carefully about what you are making public.
Location Information: You may choose to publish your location in your Tweets and in your Twitter profile. You may also tell us your location when you set your trend location on Twitter.com or your computer or mobile device sends us location information. We may also use other data from your device to determine location, for example, information about wireless networks or cell towers near your mobile device, or your IP address. We may use and store information about your location to provide features of our Services, such as Tweeting with your location, and to improve and customize the Services, for example, with more relevant content like local trends, stories, ads, and suggestions for people to follow. Learn more about Twitter’s use of location here, and how to set your location preferences here.
Links: Twitter may keep track of how you interact with links across our Services, including our email notifications, third-party services, and client applications, by redirecting clicks or through other means. We do this to help improve our Services, to provide more relevant advertising, and to be able to share aggregate click statistics such as how many times a particular link was clicked on.
Log Data: When you use our Services, we may receive information (“Log Data“) such as your IP address, browser type, operating system, the referring web page, pages visited, location, your mobile carrier, device information (including device and application IDs), search terms, and cookie information. We receive Log Data when you interact with our Services, for example, when you visit our websites, sign into our Services, interact with our email notifications, use your Twitter account to authenticate to a third-party website or application, or visit a third-party website that includes a Twitter button or widget. We may also receive Log Data when you click on, view or interact with a link on our Services to a third-party application, such as when you choose to install another application through Twitter. Twitter uses Log Data to provide, understand, and improve our Services. If not already done earlier, for example, as provided below for Widget Data, we will either delete Log Data or remove any common account identifiers, such as your username, full IP address, or email address, after 18 months.
Commerce Services: You may provide your payment information, including your credit or debit card number, card expiration date, CVV code, and billing address (collectively, “Payment Information“), along with your shipping address, to complete a commerce transaction on Twitter. You may also provide your credit or debit card number to register for card-linked services, such as offers. To facilitate future purchases on Twitter, we store your Payment Information, excluding CVV code, and shipping address, which you can remove from your account at any time using your account settings. We consider your Payment Information and shipping address private and do not make such information public. We collect and store information created by your purchases made on Twitter (“Transaction Data“). If you register your credit or debit card with Twitter for card-linked services, we receive information about the card transactions from a third-party payment services provider (“Registered Card Data“). Transaction Data and Registered Card Data may include the merchant’s name and the date, time and amount of the transaction. Twitter uses Registered Card Data to verify eligibility for card-linked services, and may also use Registered Card Data to limit the number of offers available to you and keep track of your offers.
Third-Parties and Affiliates: Twitter uses a variety of third-party services to help provide our Services, such as hosting our various blogs and wikis, and to help us understand and improve the use of our Services, such as Google Analytics. These third-party service providers may collect information sent by your browser as part of a web page request, such as cookies or your IP address. Third-party ad partners may share information with us, like a browser cookie ID, website URL visited, mobile device ID, or cryptographic hash of a common account identifier (such as an email address), to help us measure and tailor ads. For example, this allows us to display ads about things you may have already shown interest in. If you prefer, you can turn off tailored ads in your privacy settings so that your account is not matched to information shared by ad partners for tailoring ads. Learn more about your privacy options here and about how Twitter ads work here. We may also receive information about you from our corporate affiliates in order to help provide, understand, and improve our Services and our affiliates’ services, including the delivery of ads.
Information Sharing and Disclosure
TipWe do not disclose your private personal information except in the limited circumstances described here.
Your Consent: We may share or disclose your information at your direction, such as when you authorize a third-party web client or application to access your Twitter account.
Sellers of Goods and Services: If you buy goods or services on Twitter, we may provide the seller, commerce provider or marketplace with your name, email address, shipping address, Payment Information and Transaction Data to facilitate payment processing, order fulfilment and dispute resolution (including payment and shipping disputes) and to help prevent, detect and investigate fraud or other prohibited activities. Please refer to these third parties’ privacy policies for information about their privacy practices.
Non-Private or Non-Personal Information: We may share or disclose your non-private, aggregated or otherwise non-personal information, such as your public user profile information, public Tweets, the people you follow or that follow you, or the number of users who clicked on a particular link (even if only one did), or reports to advertisers about unique users who saw or clicked on their ads after we have removed any private personal information (such as your name or contact information).