Kim Zetter is an American investigative journalist and author who has covered cybersecurity and national security since 1999.

She has broken numerous stories over the years about NSA surveillance, WikiLeaks, and the hacker underground, including an award-winning series about the security problems with electronic voting machines.

She is considered one of the world's experts on Stuxnet, a malicious computer worm used to sabotage Iran's nuclear program, and published a book on the topic called Countdown to Zero Day: Stuxnet and the Launch of the World's First Digital Weapon.

She has been a staff reporter at Wired, a writer and editor at PC World, and a guest on NPR and CNN.

Zetter has interviewed and written about many notable people including sculptor Jim Sanborn (creator of the CIA's Kryptos sculpture),[1] Ed Scheidt (Chairman of the CIA's Cryptographic Center),[2] Mike Lynn (about the Cisco scandal in 2005), Australian film director Baz Luhrmann,[3] United States Assistant Attorney General Viet Dinh (creator of the Patriot Act), [4] and the famous cryptographer Bruce Schneier.