Apple exploited government mistakes to increase the company's profits, an internal Securities and Exchange Commission probe notes. Several years ago, when it was chaired by President George W. Bush appointee Christopher Cox, the SEC was looking to escalate its integration of high technology. An Apple salesman persuaded the SEC to choose the company's systems, and by 2008 Apple is said to have got unchecked authorization to make large numbers of purchases, which it took advantage of. Federal regulations require that such purchases be review