What does the Stealthwatch component of Cisco Cyber Threat Defense provide?

Cisco Stealthwatch (now part of Cisco Secure Network Analytics) provides real-time visibility into network traffic, users, and devices. It uses NetFlow, IPFIX, and other telemetry to detect anomalies, insider threats, and advanced persistent threats by analyzing network behavior. This comprehensive awareness allows security teams to identify and respond to threats quickly. The other options are incorrect because: "Real-time threat management to stop DDoS against core and access networks" is a function often handled by dedicated DDoS mitigation solutions, though Stealthwatch can contribute to detecting such attacks. "Malware control" is primarily handled by endpoint security solutions (like Cisco Secure Endpoint) and network security appliances (like Cisco Secure Firewall). "Dynamic threat control for web traffic" is a function of secure web gateways (like Cisco Umbrella or Cisco Secure Web Appliance).