Explore the intricacies of virtual firewalls in this comprehensive conference talk from TROOPERS13. Delve into the advantages, drawbacks, and complexities of virtual firewalls compared to their physical counterparts. Gain insights into cloud provider implementations, configuration management challenges, and performance considerations. Examine VM-based appliances, hardware implications, and emerging paradigms in traditional and modern data centers. Learn about multitenant configurations, VM safe APIs, and alternative solutions. Equip yourself with essential questions to ask when evaluating virtual firewall solutions, and engage in a thought-provoking Q&A session to deepen your understanding of this critical cybersecurity topic.