It was a big week for cybersecurity for Seattle's tech giants. Microsoft President Brad Smith was in Washington D.C., testifying before the U.S. House Homeland Security Committee about the Redmond company's security challenges. Listen for highlights at the end of the show.  Meanwhile, Amazon held its annual AWS re:Inforce cloud security conference in Philadelphia.The rise of AI has added some big new wrinkles to the issue of cybersecurity, and AI was one of the main topics in a conversation that I had a few weeks ago with one of the people who keynoted the AWS event this week, Steve Schmidt, Amazon's chief security officer. Hosted by Todd Bishop; edited by Curt Milton. See omnystudio.com/listener for privacy information.