Call of Duty: Warzone has implemented a new requirement for free players and should reduce the number of cheaters.
Take CS: GO and other free games as examples, Call of Duty: War Zone Now a two-step SMS verification is required for the free player on its PC.
Fundamentally, this means that anyone who does not own the full game must associate a valid mobile phone number with their profile so that they receive an SMS message, similar to two-factor authentication via email the way.
At present, this is only a requirement on the PC, but for cheaters, this will make the process of creating a new account more difficult, because each time they are banned, they must also purchase a new product line.
Security update: We have initiated two-step SMS authentication for the new server #War zonePC users who log in for free can provide additional security for the player through another step.
-Infinite Ward (@InfinityWard) May 12, 2020
Obviously, this is not a completely secure solution, as there are burners, and so are sites that generate temporary mobile numbers. However, for a game that has been struggling with cheaters, this is a step in the right direction.
Just last month, Warzone began matching cheaters with other cheaters in different halls. Infinity Ward also recently updated its player reporting tool so that everyone can report cheating through the viewer view and killcam.