Skype and Kazaa: Niklas Zennström

In the early 2000s, one of the most popular pieces of software in the world was a free peer-to-peer file-sharing network called Kazaa. It was launched by two Scandinavian entrepreneurs, Niklas Zennström and Janus Friis, with the simple idea that internet users should be able to share anything with anyone in the world.  After being knee-capped by lawsuits from the music industry, Niklas and Janus applied peer-to-peer technology to a new business: Skype, a service that allowed anyone with an internet connection and a microphone to talk to anyone else in the world… for free. At its peak,  Skype connected hundreds of millions of global users, and in 2011, it was purchased by Microsoft for $8.5 billion.  This episode was produced by Chris Maccini with music by Ramtin Arablouei. Edited by Neva Grant, with research from Kathryn Sypher. Our engineers were Jimmy Keeley and Patrick Murray. You can follow HIBT on X & Instagram, and email us at hibt@id.wondery.com. Sign up for Guy’s free newsletter at guyraz.com. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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Guy Raz interviews the world’s best-known entrepreneurs to learn how they built their iconic brands. In each episode, founders reveal deep, intimate moments of doubt and failure, and share insights on their eventual success. How I Built This is a master-class on innovation, creativity, leadership and how to navigate challenges of all kinds.New episodes release on Mondays and Thursdays. Listen to How I Built This on the Wondery App or wherever you listen to your podcasts. You can listen early and ad-free on Wondery+. Join Wondery+ in the Wondery App, Apple Podcasts or Spotify. Start your free trial by visiting wondery.com/links/how-i-built-this now. Get your How I Built This merch at WonderyShop.com/HowIBuiltThis.