Moderna has hired a former FBI agent to compile internal company reports about "high-risk" celebrities — including tennis star Novak Djokovic, tech mogul Elon Musk and actor Russell Brand — who have been publicly critical of vaccine mandates, according to a report.

The Boston-based pharmaceutical company, which marketed one of the first mRNA vaccines against COVID-19 that was distributed to tens of millions of Americans during the coronavirus pandemic, is said to be employing a team of former law enforcement officials who make up a "disinformation department" that keeps track of anti-vaccine sentiment.