Twitter Fined $150 Million for Misusing Users' Data for Advertising Without Consent
https://thehackernews.com/2022/05/twitter-fined-150-million-for-misusing.html
> The intention was to ostensibly help users recover access to their locked accounts as well as enable two-factor authentication by sending a one-time password to the registered phone number or email address after signing in with a username and password.
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> But what Twitter failed to make transparent was that it also allowed advertisers to use this information to target specific ads by matching them with email addresses and phone numbers already obtained from other third-parties such as data brokers.