Explore the fascinating world of computing on encrypted data in this conference talk from GOTO Copenhagen 2023. Delve into practical use-cases, witness live demonstrations, and discover the requirements for cross-organizational data collaboration while preserving privacy. Learn about homomorphic encryption, multi-party computation, and the Paillier cryptosystem as Maarten Everts, CTO & Co-founder of Linksight and Assistant Professor at the University of Twente, guides you through the seemingly magical realm of ciphertext computation. Gain insights into real-world applications and the potential impact on data privacy and security across various industries.