Wolfenstein: Youngblood has received the first patch, and it's a controversial one. The patch removes unlimited coins cheat, which players used to purchase character skins and boosters, which are usually purchased with real-world money.
Judging by both critic and user reviews, Wolfenstein: Youngblood is not a very good game, it's mediocre at best and it brings a lot of peculiar design decisions to the popular shooter series.
Furthermore, for the first time ever in the franchise, Bethesda decided to add weapon and character skins and boosters, which can be purchased with real-world money.
Shortly after the game launched, a Reddit user calibrono found a way to bypass the microtransaction system and get skins and boosters for free. Calibrono used the Cheat Engine to add huge amount Coins to his wallet, before spending them on various items in the game's store.
However, in the first patch for Wolfenstein: Youngblood, Bethesda and the devs Machine Games removed the exploit. It looks like the hotfix was deployed specifically to remove the cheat, as there are no patch notes or announcements from the devs on Steam.
Of course, using the Cheat Engine is a breach of the EULA (End-user license agreement), which includes cheats, hacks, mods and bots. However, it's really sad that it has to come to this in the first place. It's a Wolfenstein game, known as a fast-paced, explosive shooter, where the only thing that matters is to kill a bunch of nazis with a variety of cool weapons.
It's safe to say that by adding the live service component to such game, Bethesda were really asking for it and it was expected that players will somehow, find a way to bypass the store and obtain the items for free.
Players on Reddit write that the devs should focus on fixing the checkpoint system that makes them run long boss missions from the very start each time they get killed, or lower the enemy spawn rate instead of releasing a hotfix for Coins exploit.
You can find calibronos's post on Reddit.