If you're still on Twitter, go into your settings and delete your phone number from your account, if you've added it. If you're using it for 2FA, switch to an authenticator app instead
@micahflee I’ve already stripped my Twitter account down to the bones and locked it and deleted the app. BUT the thing I am kicking myself over at the moment is that I set up a Post account, and during the set up process I think I was required to give them my real name and email address and my old Twitter handle. So now Post has a way to link me to all that data. This feels like a big mistake on my part, given what I’ve since gathered about Post. And I don’t even use Post.