this is already a thing on Steam; you download an app Google Authenticator on your phone or they send you an E-mail with a 6 digit code and you have to have a Rockstar Social Club Login
Windows 10 Pro Gigabyte 970A DS3P FX AMD FX6300 Vishera 3.5 Ghz ASUS STRIX GeForce GTX 970 Overclocked 4 GB DDR5 16Gb Patriot Viper 3 RAM DDR3 1866Mhz Onikuma Gaming Headset (has annoying blue lights I don't use)