The Tallinn Summer School of Cyber Diplomacy returns for its fourth edition, keeping up the pace with global developments in diplomacy and cybersecurity. But it’s not just about the mainstreaming of cyber diplomacy as a foreign policy topic, following Russia’s invasion of Ukraine. In both war and peace times, it has become evident how international collaboration can set the world to create a safer and more secure cyberspace – from attributing cyber operations, to applying international law on the Internet too. Tanel Sepp is the current Ambassador-at-Large for Cyber Diplomacy at the Estonian Ministry of Foreign Affairs. Counting on his latest role after a long career in Estonian diplomacy, we explore together in this podcast episode how the Summer School invites everyone to keep upholding a free, open, and secure cyberspace. Tune in!