Quantum computers are geared to change the world in remarkable ways; from breaking the world’s toughest encryption systems, simulating complex chemical reactions, to speeding up machine learning algorithms. A network of communicating quantum computers, in a future quantum internet, is expected to be even more powerful and versatile. However, just like the internet today, security and reliability will be of paramount importance. At EmTech 2019, I will share with you some ideas about how we can ensure better trustworthiness for a network of quantum computers as well as leveraging quantum computing to help with security problems.