According to the SEC:
"Washington, D.C., Sept. 3, 2008 — The Securities and Exchange Commission today charged two Wall Street brokers with defrauding their customers when making more than $1 billion in unauthorized purchases of subprime-related auction rate securities. The SEC's Division of Enforcement in 2007 formed a subprime working group, which is aggressively investigating possible fraud, market manipulation, and breaches of fiduciary duty that may have contributed to the recent turmoil in the credit markets.
The SEC's complaint, filed in federal court in Manhattan, alleges that Tzolov and Butler, while employed at Credit Suisse Securities (USA) LLC in New York, deceived foreign corporate customers in short-term cash management accounts by sending or directing their sales assistants to send e-mail confirmations in which the terms 'St. Loan' or 'Education' were added to the names of non-student loan securities purchased for the customers. Tzolov and Butler also routinely deleted references to 'CDO' or 'Mortgage' from the names of the securities in these e-mails. As a result, the complaint alleges that customers were stuck holding more than $800 million in illiquid securities after auctions for auction rate securities began to fail in August 2007. Those holdings have since significantly declined in value."
"Washington, D.C., Sept. 3, 2008 — The Securities and Exchange Commission today charged two Wall Street brokers with defrauding their customers when making more than $1 billion in unauthorized purchases of subprime-related auction rate securities. The SEC's Division of Enforcement in 2007 formed a subprime working group, which is aggressively investigating possible fraud, market manipulation, and breaches of fiduciary duty that may have contributed to the recent turmoil in the credit markets.
The SEC's complaint, filed in federal court in Manhattan, alleges that Tzolov and Butler, while employed at Credit Suisse Securities (USA) LLC in New York, deceived foreign corporate customers in short-term cash management accounts by sending or directing their sales assistants to send e-mail confirmations in which the terms 'St. Loan' or 'Education' were added to the names of non-student loan securities purchased for the customers. Tzolov and Butler also routinely deleted references to 'CDO' or 'Mortgage' from the names of the securities in these e-mails. As a result, the complaint alleges that customers were stuck holding more than $800 million in illiquid securities after auctions for auction rate securities began to fail in August 2007. Those holdings have since significantly declined in value."