  In the prevailing convergence of traditional infrastructure-based deployment
(i.e., Telco and industry operational networks) towards evolving deployments
enabled by 5G and virtualization, there is a keen interest in elaborating
effective security controls to protect these deployments in-depth. By
considering key enabling technologies like 5G and virtualization, evolving
networks are democratized, facilitating the establishment of point presences
integrating different business models ranging from media, dynamic web content,
gaming, and a plethora of IoT use cases. Despite the increasing services
provided by evolving networks, many cybercrimes and attacks have been launched
in evolving networks to perform malicious activities. Due to the limitations of
traditional security artifacts (e.g., firewalls and intrusion detection
systems), the research on digital forensic data analytics has attracted more
attention. Digital forensic analytics enables people to derive detailed
information and comprehensive conclusions from different perspectives of
cybercrimes to assist in convicting criminals and preventing future crimes.
This chapter presents a digital analytics framework for network anomaly
detection, including multi-perspective feature engineering, unsupervised
anomaly detection, and comprehensive result correction procedures. Experiments
on real-world evolving network data show the effectiveness of the proposed
forensic data analytics solution.
