Your Robux are missing even when you didn’t use them.Here are a few indications that might confirm your account is hacked: When your Roblox account is hacked, you lose access to it and someone else can then use your account to act as you in game experiences, message your friends, and even spend your Robux. What Happens If Your Account Is Hacked in Roblox? Secure Your Roblox Account with 2FA (Two-Factor Authentication).Someone Else Added a PIN to My Roblox Account.How to Get Back a Hacked Roblox Account.What Happens If Your Account Is Hacked in Roblox?.