According to Logitech’s support page, the problem was caused by “an expired certificate” required for the apps to run. Windows users were unaffected. The issues only impacted Mac users because macOS ...

macOS uses Developer ID certificates to verify the legitimacy of software. When Logitech allowed its certificate to expire, its app lost their authentication and macOS refused to run them. In some ...

Logitech has released a manual fix for Logi Options Plus and G Hub users on macOS after an expired certificate caused both apps and their built-in updaters to stop working.

Logitech users on macOS found themselves locked out of their mouse customizations yesterday after the company let a security certificate expire, breaking both its Logi Options+ and G HUB configuration ...