This is going to be a huge problem in every sector. I have been exploring solution in this space for fintech and so far what Resemble AI is doing [1] is probably the best way to defend.

The surface level for us is not just LLM generated text, it is also the combination of AI augmented audio (for incoming calls) and then for our own voice agents being able to protect and identify services cloning our own agent voices with watermarking.

It's not fun, as we are constantly catching up.

[1] https://www.resemble.ai/detect/