"That is an unacceptable security violation," the Tesla CEO said on a post on X.

"And visitors will have to check their Apple devices at the door, where they will be stored in a Faraday cage," he said on the social media platform.

Earlier in the day, Apple announced a slew of AI features across its apps and operating platforms and a partnership with OpenAI to bring the ChatGPT technology to its devices.

Apple said it had built AI with privacy "at the core" and it would use a combination of on-device processing and cloud computing to power those features.