The official . It is widely considered safe by the Minecraft modding community because it is open source , allowing anyone to audit its code on GitHub . However, the primary risk comes from where you download it; "shady" third-party websites often bundle the client with actual malware. Safety Features & Verification
While the official client is safe, you should follow these guidelines to avoid infection: Wurst Client | Fandom - Minecraft Wiki Is Wurst Client infected with a virus?
To ensure user safety, the developers of the official Wurst Client implement several security protocols: The official