A $225 GPS spoofer can send sat-nav-guided vehicles into oncoming traffic

Found on Ars Technica on Wednesday, 18 July 2018
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A new proof-of-concept attack demonstrates how hackers could inconspicuously steer a targeted automobile to the wrong destination or, worse, endanger passengers by sending them down the wrong way of a one-way road.

The most effective is to give civilian GPS signals the same type of encryption military GPS has used for decades. Unfortunately, that would do nothing to protect people using the massive number of GPS devices already in use. Another countermeasure is to develop trusted ground infrastructure to help GPS devices verify their location. This, too, is at best a long-term solution because of the cost and constraints in government policies.

As usual, nobody will care about security as long as it can be avoided. It will take a few dramatic accidents until the pressure is growing big enough.