[Tennessee Conservative]

The cell phone number is for account security. They send you a code if you forget your password or need help logging in to your account. They have never abused mine.

[1Old Pro]

The cell phone number is for account security. They send you a code if you forget your password or need help logging in to your account. They have never abused mine.

My company does that with phones and computers, I'm more hesitant with third parties.