It's recommended you use 2FA on everything but don't use your mobile number on twitter (you should also set a telegram password):
https://twitter.com/matt_odell/status/1133129839823794176?s=19
https://twitter.com/matt_odell/status/1133129839823794176?s=19
Twitter
Matt Odell
(1)Go into Twitter settings. (2)Enable app based 2FA. (3)Remove your phone number.* (4)Do that for every other important service you use. If they don't let you remove your number, email support and complain. *Or change it to a google voice or burner number…
❗️With the latest version of Telegram, for privacy it's recommended you change your "Phone Number" under "Privacy and Security" to "Nobody".