Jupyter Notebooks are interactive web tools known as a computational notebooks, in which researchers can combine software, text, multimedia resources, and computational output. Notebooks can be launched locally and access local file systems, or remotely to provide access to a user’s files on the remote system. In the latter case, the notebooks are launched via a process that creates a unique URL that is composed of the hostname plus an available port (chosen by the jupyter application) plus a one-time token. By default, these notebooks are not secure, and potentially expose a user’s local files to unwanted access. In this webinar, we will present SDSC’s multitiered approach to running notebooks more securely: running notebooks in the usual way using the insecure HTTP connections; hosting a JupyterHub server using HTTPS and Jupyter Lab; and the new Reverse Proxy Service (RPS). When used, the RPS will launch a batch script that creates a securely hosted HTTPS access point for the user, resulting in a safer, more secure notebook environment.