I had the pleasure last week of hosting a discussion with fintech CEOs at the Reagan National Economic Forum in lovely Simi Valley, Calif. The focus was on how the U.S. can keep its edge as the world’s top economic power by leading in the two technologies that are defining the next era of finance: blockchain and AI.

The good news is that, so far, the U.S. is more than holding its own. During the panel, Ramp CEO Eric Glyman explained how AI is unlocking huge new efficiencies in corporate expense management, while the heads of Kraken and Bridge, Arjun Sethi and Zach Abrams, described how stablecoins are consolidating dollar dominance across the world. But there’s a dark side to all this: America’s adversaries, along with ordinary criminals, have also discovered the power of these technologies.

Abrams described how last week he received a video call from the CFO of Stripe, which last year acquired Bridge. The video, which perfectly replicated the CFO’s voice and likeness, directed Abrams to make an urgent financial transaction. The message was convincing enough that Abrams wrote the CFO for more details—only to receive a reply that exposed the whole thing as a well-executed deepfake.

This is hardly the first time bad guys have used AI deepfakes in a bid to defraud corporate executives. Just recall that poor employee in Hong Kong who did get taken in by a deepfake of her CFO that prompted her to wire $25 million to a hacker gang. But these sorts of one-off robberies will feel like peanuts if criminals can begin to deploy AI-based fraud at scale.