Hackers tricked Teslas into speeding with 2-inch strip of tape on a 35-MPH sign
businessinsider.com
businessinsider.com
Currently MobilEye has the patent on reading speed limits and other traffic signs. How they managed to get it on such a trivial image processing task is beyond me...
A 2018 paper titled "Robust Physical-World Attacks on Deep Learning Visual Classification" [1] tested what it called "adversarial perturbations" on the most important of all traffic signs: the STOP sign.
By slapping black and white stickers a couple square inches in size on the STOP sign, the authors managed to achieve a 100% misclassification of the STOP sign into 45 MPH speed limit one. To the human eye, the STOP sign is clearly visible and perceivable.
In theory, people owning autonomously-driving vehicles could be assassinated this way and nobody would be the wiser.