Nikon, Sony, and Canon are all adding tamper-resistant digital watermark tech to their cameras. You will be able to use software to check they haven't been changed. It won't help stem the flood of AI-generated deepfakes on social media. AI Face Swap for Deep Fake. Tero Vesalainen / Getty Images Nikon, Sony, and Canon will add new tech to embed digital signatures into photos so users can prove their photos are not AI-generated. It's good for journalists and photo editors but is little more than a...