In the night of January 7, 2026, the Apple security certificate used by Logitech's Options+ application expired, which caused a number of the manufacturer's devices around the world to stop functioning. The disruption primarily affected users on macOS and owners of newer Logitech hardware that depends on the Options+ app and an active network connection for normal operation — for example, MX Master series mice.
Options+ is the latest version of Logitech's customization software, designed to let users configure macros, lighting and other device-specific settings. While Options+ was originally offered as an optional upgrade to the older Options software, Logitech informed customers in 2024 that it planned to migrate users to the new platform. Legacy devices can still operate without the companion app in many cases, but for Logitech's most recent models the Options+ client became necessary even for routine use.
Logitech responded quickly: the company released a patch roughly one and a half hours after the problem began, restoring functionality to affected devices. The certificate had expired on January 6 at 22:39 Moscow time, which is the moment that triggered the authentication failures experienced by some users.
The incident underscores the operational risk posed by expiring digital certificates for software-dependent peripherals. Users affected by the outage were advised to install the patch and ensure their Logitech software is kept up to date to avoid similar interruptions in the future.