AI cloning of celebrity voices outpacing the law, experts warn

David Attenborough among famous people whose voices have been exploited by fraudsters

It's the new badge of celebrity status that nobody wants. Jennifer Aniston, Oprah Winfrey and Kylie Jenner have all had their voices cloned by fraudsters. Online blaggers used artificial intelligence to fake the Tiggerish tones of Martin Lewis, the TV financial adviser. And this weekend David Attenborough described himself as profoundly disturbed" to have discovered that his cloned voice had been used to deliver partisan US news bulletins.

Now experts have warned that voice-cloning is outpacing the law as technologists hone previously clunky voice generators into models capable of emulating the subtlest pauses and breathing of human intonation.