Let's just say you signed into one of those "free robux" sites. The scammer now has your account and take everything off it but this can be avoided by using 2 step authentication. For example, you're account is signed in from a different location (Country, city, etc) or has a different IP address this can be tracked and ROBLOX would know that this would be someone hacking this account. -- But what if it's you? Maybe you could just verify using Email (or mobile??). This problem would basically wipe out "free robux" websites FOR GOOD.
R$471 https://www.roblox.com/WAKE-ME-UP-INSIDE-item?id=411105014 🆆🅰🅺🅴 🅼🅴 🆄🅿 🅸🅽🆂🅸🅳🅴 https://www.roblox.com/item.aspx?&id=291561141