Fake autographs on eBay are more prevalent today than during the FBI Operation Bullpen sting a few years ago. It seems that this new generation of fraudulent sellers have forgotten how many people the FBI put in jail during their investigation.

The industry’s leading autograph authenticator, PSA-DNA, claims that only 33 percent of more than 10,000 Tiger Woods and Michael Jordan autographs it scrutinized were real. That means more than 6,600 of the 10,000 signatures PSA-DNA sampled were forgeries.