From FINRA:
“FINRA has received a number of calls from individuals who have received unexpected checks that purport to be issued by FINRA. The checks are counterfeit, and may arrive by special delivery and require a recipient’s signature. The arrival of these checks may be linked to job search scams, though callers note that there is no direct reference to a job search relationship accompanying the mailing just a check. Learn more about “mystery shopper,” “modeling” and other job-search scams in which individuals receive checks that appear to be from legitimate companies including FINRA.”
Read more HERE.