If you're reading this, then you have macOS 10.14 or EARLIER installed (Mojave, High Sierra, Sierra, etc). Those instructions are at the very bottom of this page in NOTE3. If you have previously disabled the included SmartCard services in macOS 10.13 Sierra or later, you will need to re-enable those services. (If you bought a brand new computer with macOS 10.15 installed, you can skip this step.) Go to this article from and follow the instructions to remove any old CAC enablers you may have installed on your computer. You can skip ahead.Ģ) If your computer is older and you upgraded to Catalina, you may need to remove any old CAC enablers and re-enable SmartCard services (if you disabled it). The operating system has built-in software to read your CAC.ġ) If your computer is BRAND NEW with macOS 10.15 or later and you have never installed a CAC enabler on it - DON'T INSTALL ONE. For macOS 10.15 (Catalina) and later, you CANNOT install a CAC enabler.
