Crosswalk buttons in several Californian cities have been hacked to play AI-generated voices impersonating tech moguls Elon Musk and Mark Zuckerberg, delivering bizarre and satirical messages to pedestrians.

The spoof messages, which mock the CEOs with lines like 'Can we be friends?' and 'Cooking our grandparents' brains with AI slop,' have been heard in Palo Alto, Redwood City, and Menlo Park.

US Palo Alto officials confirmed that 12 intersections were affected and the audio systems have since been disabled.

While the crosswalk signals themselves remain operational, authorities are investigating how the hack was carried out. Similar issues are being addressed in nearby cities, with local governments moving quickly to secure the compromised systems.

The prank, which uses AI voice cloning, appears to layer these spoofed messages on top of the usual accessibility features rather than replacing them entirely.

Though clearly comedic in intent, the incident has raised concerns about the growing ease with which public systems can be manipulated using generative technologies.

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