Zoom gave its users a big security upgrade Monday when it rolled out end-to-end encryption for its online meetings network. E2EE puts control of the keys for scrambling data in the hands of meeting organizers. Before the E2EE rollout, encryption was done on Zoom's servers, where someone with access to those servers could intercept the data. When used correctly, E2EE can make it difficult for even the best-resourced intelligence agencies to eavesdrop on communication.