Graffiti on stop signs could trick driverless cars into driving dangerously

Driverless cars could ignore road signs on the streets since they can be confused by simple vandalism, researchers have found. While carmakers have been investigating ways to protect autonomous cars against hackers, more conventional attacks could confuse the vehicles into misreading road signs that would appear normal to ordinary drivers. Placing stickers or posters over part or the whole of a road sign could be used to trick the smart car into ignoring stop signs, even if visual