Did you read the article?

The article says there might be a flaw, and it would be a huge deal. It does not state those phones are broken. It does not extract keys, which would be needed in the case of Sony cameras to sign fake pictures.

Here's a later followup article from Elcomsoft, one of the best security firms around [1]. The key quote: "checkm8 does not affect the Secure Enclave."

So no, they did not extract keys needed that would be needed to sign new phots for the Sony phone.

And later iPhones have removed this as a vector. It's unlikely Sony made the same mistakes quite old iPhones did, since they have the ability to learn from past security issues.

[1] https://blog.elcomsoft.com/2021/05/checkm8-based-extraction-...