The NPR new item and audio podcast The Global Positioning System Resets talks about a 19 year cycling of something in the GPS system, but it's not clear what it is.
Every 19 years, the Global Positioning System resets a measure of time built into its program. The latest rollover is Saturday and NPR's Scott Simon asks cybersecurity expert Frank Cilluffo about it.
It's Y2K for GPS. The Global Positioning System was designed with a limit for the number of weeks it could count. Every 19 years, the program reaches that limit and the count resets. That happens tonight. What might happen tonight? Frank Cilluffo is director of the McCrary Institute for Critical Infrastructure Protection and Cyber Systems. He joins us now from the campus of Auburn University. Thanks so much for being with us.
- What is it exactly that cycles or "rolls over" every 19 years?
- Is it in any way analogous to y2k?
- Is there any cybersecurity issue associated with the rollover more subtle than GPS simply not working for some users? For example, is there some hacking potential associated with this moment?