MacOS provides several softwares to monitor network traffic and track historical data, allowing users to identify and troubleshoot unexpected bandwidth consumption. If you suddenly find your MacOS device using a significant amount of data, such as 30+ GB in a single night, without any automatic downloads or known applications consuming the resources, then this article will guide you through the available solutions. We will review the best software options for MacOS and provide step-by-step instructions on how to track and analyze network traffic.