If you've ever come across vaults in Fortnite, you've probably noticed they've historically required you and some friends to stand still and be scanned in order to access the goodies inside. Well, all of that has changed with the introduction of keys in Fortnite Chapter 3 Season 4, which will now have to be collected before being able to open vaults. The vaults are stacked with much better loot this time around, but they'll take some searching on your part. Here's how to get vault keys in...