Roblox.har -

Scammers often use social engineering to trick players into handing over this file:

They send a video tutorial showing you how to go into your browser’s developer tools, click the Network tab, and "Save as HAR" . roblox.har

They claim they need your "avatar data" to import it into 3D software like Blender. Scammers often use social engineering to trick players

A scammer contacts you (often on Discord) offering to make a free GFX (high-quality 3D render) of your avatar. Once you send the file, they extract your login cookie

Once you send the file, they extract your login cookie. This allows them to bypass two-factor authentication (2FA) and log into your account instantly. How to Stay Safe Cookie logging explained - Developer Forum | Roblox

In the context of Roblox, a (HTTP Archive) is a log of a web browser's activity used primarily for troubleshooting network issues. However, it is also central to a dangerous account theft scam because it contains your account's session cookies , including your ".ROBLOSECURITY" token . The Roblox .HAR Scam