Via the New York Times
Companies such as JetBlue, Wish, and most recently, Quibi, were found to be leaking email addresses to a number of partners and advertisers including Google and Facebook. The email addresses are leaked via URL data, occurring after a user clicks a confirmation link.
Some of the companies deny the claim or deny the fact that it’s a breach or a leak—and while they may not have been intending to share that much information with their partners, the end result is still that user emails are being shared without consent or notice.
For more details, visit the New York Times. And to learn more details about how the email addresses fall into the hands of advertisers via URLs, click here for the original report that exposed how these companies were leaking emails.