Facebook and Twitter admit that marketers accessed the phone numbers people gave them for security verification. Fortunately, there are other ways to secure your online accounts without handing over a phone number. Facebook, Twitter, and most major sites allow a second 2FA method that uses a free app to generate short-term codes you can enter into the site to verify your identity, just as you would with a code that is texted to you.

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Captain, S. (2019, October 10). Stop giving companies your phone number. Do this instead. Fast Company. https://www.fastcompany.com/90415625/stop-giving-companies-your-phone-number-do-this-instead