Riot is a terrible company, give us two factor

Riot games is worth billions of dollars at this point, and continues to have account security from the 90s like "we permaban you if you change your IP and password, and if you know what skin you used the most on 22 October 2012 we unban you" instead of two factor authentication like similarly popular game companies use. An intern could implement two factor in a couple of days, it blows my mind.