GPS Flaw: Security Expert Says He Won’t Fly April 6

FalTech GPS, a British company that makes GPS signal repeaters for indoor use, said in a blog post that “some GPS receivers, or other systems that utilize the date and time function, may not be able to cope.” Over the past 20 years, many individual GPS device and receiving-system manufacturers have restarted the clock on their own, usually to compensate for a device-specific error, and they could encounter time-rollover problems at any given in the next 20 years. So that this doesn’t happen again any time soon, GPS devices made in the past decade use 13 bits for the week counter, yielding a total of 8,192 weeks or 157 years.

Source: www.tomsguide.com