Originally built as a way to secure cryptocurrency transactions, blockchain is a digital platform that verifies and records exchanges. Blockchains are global networks that can have millions of users, each adding information or data that is secured through cryptography. This creates an indisputable history of these transactions that cannot be modified by a single user, eliminating opportunities for fraud, and it is this feature that has some heralding blockchain as a way of increasing cybersecurity.
Xi He joined the David R. Cheriton School of Computer Science as an assistant professor in March 2019. She received her BS in computer science and applied mathematics from the University of Singapore in 2012 and her PhD in computer science from Duke University in 2018. Her research is on privacy and security for big-data management and analysis.