Summary:
- Hackers have discovered a way to remotely control the crosswalk buttons in certain US cities, allowing them to change the timing of the signals.
- This could be used to cause traffic jams or disrupt the normal flow of pedestrian and vehicle traffic, potentially causing safety issues.
- Cybersecurity experts are working to identify and fix the vulnerabilities that allow this hacking to occur, in order to protect the public infrastructure from being misused.