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1. Twitter Sells Access to Your Data
Twitter provides access to limited quantities of its content for free. For “large-scale” access, it’ll charge a licensing fee. This language is found in the same section where it covers basic public information, such as tweet content, retweets, and likes, so it’s unclear whether this access also covers your personal information as well.
2. Your Address Book Is Up For Grabs
Twitter claims it uses your contact info and address book—if you sync it with them—for authentication, security, and content purposes. How someone’s address book is used to “better recommend content to you and others” is unclear. Just as likely, that information will be used for advertising purposes.
3. Your Direct Messages Aren’t Private
Twitter stores and processes communications and related info in Direct Messages. It will scan links for malicious content, spam, prohibited images, and to review reported issues.
While Twitter claims the DMs won’t be used to serve ads, information such as who you’re messaging with and when is used to serve more relevant content.
4. Twitter Will Use Your Data For Advertising
Across the policy, Twitter covers various ways it collects your data, including: Your location, what you click on across multiple services (including emails and websites with Twitter content in it); cookies and your IP address, if you clicked on a Twitter ad; your log data. This is an all-encompassing term that includes IP address, browser type, operating system, referring web page, pages visited, mobile carrier, search terms, and more.
5. Twitter will share more info with affiliates
The company will share the following data with ad partners and affiliates: Browser cookie IDs, Mobile Device IDs, hashed email addresses, demographic data, what content was viewed, what “actions” were taken on an app, device and user characteristics.
6. Third-parties give Twitter a lot of data
Advertisers also share information with Twitter, just as Twitter shares with them. Twitter also collects information from other Twitter users, Twitter’s partners, ad affiliates, and corporate affiliates. None of these partners or affiliates are named in the Policy.
7. Logged out? Twitter still knows you
Twitter can associate your account with browsers and devices you use even if you’ve logged out of Twitter on those browsers and devices. They do this, they claim, to “personalize” their services.
8. Twitter will share your data with the government
Like many companies, Twitter makes it clear it will “comply with a law, regulation, legal process, or governmental request” and share personal data. It doesn’t mention whether it will make this disclosure public or inform impacted users.
9. Twitter can change its policy whenever
10. Our recommendation? Change your settings.
Twitter collects and shares a lot of personal data, even if you’ve never created an account. If you are a Twitter user, you can do something about that. We recommend going into your personalization, data, and privacy settings and toggling a few of the options. Everyone will have a different level of tolerance given how they use Twitter and whether or not they find the personalization and tailored ad experience helpful.