On Tuesday, April 12, the U.S. Securities and Exchange Commission (SEC) fined David Hansen, the former Chief Information Officer of NS8, Inc., a Las Vegas-based fraud detection and prevention software firm, approximately $100,000 for interfering with an employee’s ability to communicate with the SEC in violation of Rule 21F-17(a).  The SEC alleged that Hansen violated the rule by restricting the employee’s access to NS8’s IT systems and monitoring his use of corporate computer systems following the employee providing a tip to the SEC about NS8’s corporate practices.  In dissent, SEC Commissioner Hester Peirce said that the application of Rule 21F-17(a) was inappropriate in this case, arguing that restricting the tipster’s access to IT systems and monitoring their use did not impede their ability to communicate with the SEC and was a reasonable step in preventing unauthorized disclosure of NS8’s data to private parties and the media.