A Greenwich, Conn., mortgage broker admitted that she helped her college-age son recruit investors in a multimillion-dollar hedge fund scam but said she really believed he was a savvy money manager.

Ayferafet Yalincak, 51, pleaded guilty to conspiracy to commit wire fraud, a charge that could send her to prison for up to five years. Her 22-year-old son, Hakan, has pleaded guilty to bank fraud and wire fraud and faces up to 50 years in prison for managing the scheme.