The Logitech Blackout: How an Expired Certificate Bricked Your Mac Mouse Settings

If you use a Logitech mouse together with the companion software Logi Options+, you may have noticed that some settings have stopped working. The cause is surprisingly mundane: Logitech failed to renew a digital certificate, preventing the software from connecting properly to its servers. As a result, certain user-defined configurations can no longer be applied.

At present, the issue appears to affect macOS users only. The expired certificate is a Logitech-issued Apple developer certificate, and under macOS security design, once such a certificate expires, the associated backend services can no longer start correctly. This is why users may encounter symptoms such as the application freezing on its launch screen.

For the same reason—processes failing to start due to the expired certificate—other Logitech background services may repeatedly attempt to launch, only to be blocked by Apple’s Gatekeeper. This behavior can lead to increased heat generation on MacBooks and a noticeable drop in battery life. As of this writing, Logitech representatives have acknowledged the issue, confirming that it stems from the expiration of their Apple developer certificate. Because macOS now deems the affected components untrusted during verification, it refuses to launch the backend services, leaving the frontend application unable to load properly.

Logitech has stated that it is in the process of renewing the certificate and preparing an emergency fix. In the meantime, a temporary workaround involves manually adjusting the system clock: set the date to January 5, 2026, or earlier, then launch the Logitech software, apply and save your settings, and verify that the mouse functions correctly. Once this is done, restore the system time to the current date.

It is important to revert the system clock immediately after completing this process. Leaving the date incorrect may disrupt other websites or services whose certificates could appear invalid or expired. Simply return to system settings and reset the time to the present.

This method only ensures functionality for the current session. If the system is rebooted, the software will again be blocked on startup, requiring you to repeat the time adjustment before launching the application and then restoring the correct date.

An alternative solution is to install Logi Options+ version 1.44. This release is less affected by the certificate expiration and can be used as a temporary measure. After installing the older version and launching it successfully, automatic updates should be disabled immediately to prevent the software from upgrading itself back to the affected current release.

Related Posts:

• Multiple Vulnerabilities in Logitech Harmony Hub allow the hacker to gain root access
• Silent Skimmer Reemerges: New Tactics Target Payment Gateways
• Windows Security Alert: Secure Boot Certificates Expiring in 2026, Update Now
• Sophisticated Attacks Employ Cobalt Strike, DLL Sideloading, and Evolving Tactics