Lastly, the very end of the trailer reveals the IP address of a website -- Cyberpunk.net (read more about it here). There is a registration field where you can enter your login and password.
It turns out that the login is the model of the car, which could be seen in the trailer -- Quadra V-Tech. But what is the password? Well, it's the plate number of that same car, which is NC20 CP77.
You can't use this anymore, as both login and password are expired, but people who were fortunate enough to use the data, received the congratulations letter from CD Projekt Red.
Hopefully, you enjoyed reading this article, and be sure to come back soon for more Cyberpunk 2077 news here at GameSkinny!