If you have landed on this article, you have likely seen this red text flooding your Cydia Impactor log window. You are not alone. This error has become a rite of passage for modern jailbreakers.
However, as Apple tightened its security protocols, users began encountering a cryptic, frustrating roadblock: assert code 200 cydia impactor exclusive
If you install or Mojave (10.14) inside a virtual machine (VMware/VirtualBox) and install an unpatched version of iTunes 12.6.4, and you use an Apple ID that has never enabled 2FA (created before 2015), you might get Cydia Impactor to work. If you have landed on this article, you