macOS Catalina has a number of security features that prevent the running of malicious code. However, it can inadvertently block useful software too. In this case, it’s blocking the FUSE kext that Keybase uses to access the encrypted files stored in the cloud. Normally, you can go into System Preferences / Security and allow usage but in this case, the GUI would not allow access. The first...
Allowing Keybase Finder file access on macOS Catalina