Longtime Fort Lauderdale attorney Jan Douglas Atlas was charged with one count of securities fraud Tuesday over his alleged involvement in a $330 million scheme that prosecutors say hurt almost 3,600 investors across 42 states.

Prosecutors say Atlas provided “false legal cover” for unlawful practices when he served as outside counsel to 1 Global Capital LLC, a defunct Hallandale Beach commercial lending agency which gave high-interest payday loans to small businesses.