What’s the harm? Fact checking reveals the true scale of AI fakery.

Joseph O’Leary   Full Fact   5 October 2026
AI-generated false content is no longer a fringe curiosity in the information ecosystem. It’s a fast-growing share of everything fact checkers investigate.

In a new study Full Fact and the University of Westminster analysed 112 pieces of online AI-generated or AI-altered misinformation and disinformation, seen tens of millions of times.