minecraft says could not connect to server on launcher

Non official modpacks were not verified as they use external download sources, so if you plan on installing a third party pack from Technic, you should be cautious and scan after downloading.

Technic: All clear to install and use Technic official modpacks.

Modrinth: All clear to install and use Modrinth modpacks and install and use Modrinth mods CurseForge: All clear to install and use CurseForge modpacks and install and use CurseForge mods ATLauncher: All clear to install and use ATLauncher modpacks Several platforms have come out and confirmed that they've scanned and removed all traces (if there were any) of the malware from their sites: CurseForge Infected mods detection toolīoth these tools will detect for any traces of the malware on your PC or within your modded Minecraft installations (be sure to scan your entire drives, or at least your user folder and any folders where you run Minecraft from). The situation seems to have relaxed a bit, the details on the malware and what it does is known (again if you're interested take a look at this GitHub repo) and we have tools available to detect if you're infected:

Minecraft says could not connect to server on launcher