[1] In the early 1990s, his father pleaded guilty to falsifying business records at a small New York securities firm that supported a stock-rigging scam costing investors millions.
[5] In 2000 he was invited to join Min-X, an electronic exchange for trading phone minutes, and provided much of the funding for relaunching it as the VOIP company Vonage.
[6][7] As of January 2013[update] Citron was also managing partner of KEC Holdings,[8] and in 2008 he opened a fish restaurant in Manhattan, Fishtail, with David Burke.
[11][12] When the settlement was finalized in February 2003, the SEC also ordered Citron be "barred from association with any broker or dealer",[13] which necessitated his stepping down as CEO of Vonage when the company went public in 2006.
[4][7] In 1999, Citron and his wife founded the Charles Lafitte Foundation, named after their labrador retriever;[8][14] it makes donations in the fields of medicine, the arts, education, and advocacy for children.