A Malta-based advisory firm has been charged along with its owners with defrauding clients out of more than $75 million, the U.S. Securities and Exchange Commission (SEC) announced. The company was licensed by the Malta Financial Services Authority (MFSA). In a statement, the financial watchdog said it had charged two North Carolina-based executives, Gregory Lindberg and Christopher Herwig, and their Malta-based registered investment advisory, Standard Advisory Services Limited.