The technology used in facial recognition software typically involves a combination of machine learning, artificial intelligence (AI), and image processing algorithms. This software examines facial features from images or live video feeds and compares them against a database for identification or verification purposes. Advanced algorithms analyze multiple variables, such as distance between features and patterns, to create a unique facial signature. Over time, this technology has found applications in security systems, identification processes, and user access control, enhancing safety and user experience in various settings.