Zeke Faux is an investigative reporter for Bloomberg. His new book is Number Go Up: Inside Crypto’s Wild Rise and Staggering Fall.

“I have a rule of thumb, which is that if somebody did one scam, they probably did another scam. If they did one scam in the past and now they have a new thing, odds are good it’s also a scam. That’s not always true, but that was definitely borne out sometimes in crypto-world.”