Experts agree that network monitoring is a critical proactive cybersecurity measure. But complexities arise that require cross-department coordination and deep understanding of numerous privacy limitations and other legal requirements. The second installment of this two-part series provides operational guidance on implementing monitoring programs and navigating contrasting rules in Europe, as well as issues surrounding individual monitoring, monitoring for non-security purposes, and data controlled by third parties. The first part tackled the role of data monitoring, effective notice, legal considerations, and specific policy considerations. See also “Do You Know Where Your Employees Are? Tackling the Privacy and Security Challenges of Remote Working Arrangements” (May 25, 2016).