https://www.bleepingcomputer.com/news/technology/cisa-gps-software-bug-may-cause-unexpected-behavior-this-sunday/

The Cybersecurity and Infrastructure Security Agency (CISA) warned that GPS deices might experience issues over the weekend because of a timing bug impacting Network Time Protocol  (NTP) servers running the GPS Daemon (GPSD) software.

"The Network Time Protocol (NTP) has been critical in ensuring time is accurately kept for various systems businesses and organizations rely on. Authentication mechanisms such as Time-based One-Time Password (TOTP) and Kerberos also rely heavily on time. As such, should there be a severe mismatch in time, users would not be able to authenticate and gain access to systems." - SANS ISC