Hewlett Packard CEO Mark Hurd <A HREF="http://money.cnn.com/2006/09/21/technology/hp_hurd/index.htm">will testify at a Congressional hearing</A> about the tactics used in the company's controversial leak probe next Thursday. Hurd joins a roster that includes several individuals involved in the HP probe--including outgoing chairwoman Patricia Dunn and chief ethics officer Kevin Hunsaker. HP said Thursday the Securities and Exchange Commission has requested information from the computer maker about the leak probe. In an SEC filing, HP revealed the government is seeking data "relating to the resignation of Mr. Tom Perkins from HP's Board of Directors" and "investigations conducted by HP or any of its directors into possible sources of leaks of HP confidential information."