The loss or hacking of positioning, navigation, and timing (PNT) signals could be catastrophic, not only to infrastructure such as power grids and communication networks but also to autonomous devices which are relying more and more on GNSS technology for their operations. This webinar reviews the different threats in security for GNSS systems from signal to firmware hacking and will also cover both the user side as well as the space and cyber technologies being implemented to make GNSS systems more robust. With guest speakers from LS Consulting and BNSF Railway Co.