Which security functions are typically outsourced?

• A. Intrusion detection
• B. Vulnerability testing
• C. Both Intrusion detection and Vulnerability testing
• D. Neither Intrusion detection nor Vulnerability testing

Answer: (C)

Outsourcing security functions to specialists is common because it combines constant monitoring with expert testing. Intrusion detection is about watching network traffic and hosts for signs of unauthorized access and delivering alerts in real time; many organizations rely on managed security providers to handle this so they get 24/7 coverage and rapid incident response without building a large in-house SOC. Vulnerability testing systematically uncovers weaknesses in systems, configurations, and applications and helps prioritize fixes; external security testers bring broad toolsets and up-to-date methodologies to find and quantify risks. Doing both externally gives you continuous threat detection and proactive risk discovery, which is a practical approach for strong security. Relying on only one of these would leave either active threats unchecked or unknown vulnerabilities unaddressed, so outsourcing both fits common security strategies.