During the Trump administration, Chris Krebs was the top cybersecurity official at the Department of Homeland Security. He spoke with WSJ’s Rolfe Winkler at WSJ Tech Live about the upcoming U.S. election and growing cyber threats from foreign governments. Further Listening: -The Chinese Hackers Spying on U.S. Internet Traffic  -Red, White and Who? Playlist  Further Reading: -China-Linked Hackers Breach U.S. Internet Providers in New ‘Salt Typhoon’ Cyberattack  -U.S. Wiretap Systems Targeted in China-Linked Hack  Learn more about your ad choices. Visit megaphone.fm/adchoices