Sean Tan is a Senior Analyst for the Cyber and Homeland Defence Programme at CENS. He previously graduated with an MPhil in World History from the University of Cambridge. Prior to joining CENS, he had been based at the Centre for Information Integrity and the Internet (IN-cube), a centre that aims to help promote information integrity in online spaces. A one-time prospective historian with a keen interest in non-traditional security matters, Sean will be continuing work in this space, which includes Distortions Rumours Untruths Misinformation Smears (DRUMS), foreign interference and hybrid threats, and corporate censorship through algorithms.

• Security partnerships vis-à-vis the resurgence of great power politics
• Media and cultural studies
• Postcolonial legacies in Southeast Asia

Policy Reports

• Enhancing the Security of Singapore's Submarine Cables: Strengths, Challenges and Opportunities

  21 May, 2024

RSIS Commentary Series

• Assumptions About Censorship in the Digital Domain Are Not Always What They Seem

  07 October, 2024

• What the Proposed United States’ Ban on TikTok Really Conceals

  08 July, 2024

• Regulating Online Harms: Are Current Efforts Working – Or Even Workable?

  23 November, 2023

• Influence-for-Hire: Southeast Asia's Shadow Economy?

  17 March, 2022

Commemorative / Event Reports

• CENS Workshop on DRUMS: “Security in a Post Truth World”

  30 January, 2023

Op-Eds

• “The unseen hand of the shadow fleet in critical undersea infrastructure security”, Pacific Forum, 15 August 2025
• “Blockchain in Southeast Asia: Striking a Balance Between Innovation and Protection”, The Diplomat, 1 June 2022