#Installing ngrok on OSX
When you try to install with downloaded zip file from ngrok website, alert message will pop up and tell you "ngrok" can't be opened because it is from an unidentified developer.
You can simply use homebrew to install this without any issue.
- Open your terminal
$ brew cask install ngrok
I'm on Big Sur and I saw it. it's pretty easy to miss, but after you run the command and get the message, look down in the "Allow apps downloaded from" section in the "General" tab (System Preferences > Security & Privacy > General), you should see a button asking you to allow "ngrok" permission.